const chapters = {
1: [
{
"question": "Mendeleev in his periodic table, arranged the elements according to their atomic ______.",
"options": [
"A. number",
"B. mass",
"C. size",
"D. radius"
],
"answer": "B. mass"
},
{
"question": "Vertical columns in modern periodic table are called ______ and horizontal rows are called ______.",
"options": [
"A. groups, periods",
"B. periods, groups",
"C. families, series",
"D. series, families"
],
"answer": "A. groups, periods"
},
{
"question": "Members of group VIIA are called ______ and alkali metals is the family name of ______ group members.",
"options": [
"A. halogens, IA",
"B. chalcogens, IIA",
"C. noble gases, VIIIA",
"D. halogens, IB"
],
"answer": "A. halogens, IA"
},
{
"question": "Metals form ______ oxides and non-metals form ______ oxides.",
"options": [
"A. acidic, basic",
"B. basic, acidic",
"C. neutral, amphoteric",
"D. amphoteric, neutral"
],
"answer": "B. basic, acidic"
},
{
"question": "Hydrogen can be placed above the groups ______ of the periodic table.",
"options": [
"A. IA and VIIA",
"B. IA only",
"C. VIIA only",
"D. IB and VIIB"
],
"answer": "A. IA and VIIA"
},
{
"question": "Shielding effect is actually the ______ due to electrons in between the nucleus and the outermost shell.",
"options": [
"A. repulsion",
"B. attraction",
"C. neutralization",
"D. protection"
],
"answer": "A. repulsion"
},
{
"question": "Noble gases have the ______ values of ionization energy due to their complete outermost shells.",
"options": [
"A. lowest",
"B. moderate",
"C. highest",
"D. variable"
],
"answer": "C. highest"
},
{
"question": "When a second electron is added to a uni-negative ion, the incoming electron is ______ by the already present negative charge.",
"options": [
"A. attracted",
"B. repelled",
"C. neutralized",
"D. absorbed"
],
"answer": "B. repelled"
},
{
"question": "Due to having partly filled d-orbitals ______ metals usually show variable valency.",
"options": [
"A. alkali",
"B. alkaline earth",
"C. transition",
"D. inner transition"
],
"answer": "C. transition"
},
{
"question": "Melting and boiling points of halogens ______ down the group.",
"options": [
"A. increase",
"B. decrease",
"C. remain constant",
"D. fluctuate"
],
"answer": "A. increase"
}
],
2: [
{
"question": "Alkali metals are ______ reactive than alkaline-earth metals.",
"options": [
"A. less",
"B. more",
"C. equally",
"D. not"
],
"answer": "B. more"
},
{
"question": "Alkali metals decompose water vigorously producing ______ and hydrogen.",
"options": [
"A. oxygen",
"B. metal hydroxides",
"C. metal oxides",
"D. metal carbonates"
],
"answer": "B. metal hydroxides"
},
{
"question": "When heated in a current of dry hydrogen, alkaline earth metals form white crystalline ______ of the type MH₂.",
"options": [
"A. oxides",
"B. hydrides",
"C. hydroxides",
"D. carbides"
],
"answer": "B. hydrides"
},
{
"question": "The beryllium hydroxide, like the hydroxide of aluminium is amphoteric, while the hydroxides of the other members of the group IIA are ______.",
"options": [
"A. acidic",
"B. neutral",
"C. basic",
"D. amphoteric"
],
"answer": "C. basic"
},
{
"question": "The elements of the group IA are termed as alkali metals, because their ______ are alkaline.",
"options": [
"A. oxides",
"B. hydroxides",
"C. carbonates",
"D. chlorides"
],
"answer": "B. hydroxides"
},
{
"question": "Spodumene is an ore of ______ metal.",
"options": [
"A. sodium",
"B. potassium",
"C. lithium",
"D. calcium"
],
"answer": "C. lithium"
},
{
"question": "Alkali metal nitrates on heating give the corresponding ______ and oxygen.",
"options": [
"A. nitrites",
"B. oxides",
"C. hydroxides",
"D. carbonates"
],
"answer": "A. nitrites"
},
{
"question": "Na₂CO₃·H₂O is the chemical formula of a mineral of sodium which is known as ______.",
"options": [
"A. washing soda",
"B. baking soda",
"C. trona",
"D. natron"
],
"answer": "D. natron"
},
{
"question": "Metallic bicarbonates are decomposed on heating into their carbonates, along with ______ and ______.",
"options": [
"A. water, oxygen",
"B. carbon dioxide, water",
"C. hydrogen, oxygen",
"D. carbon dioxide, hydrogen"
],
"answer": "B. carbon dioxide, water"
},
{
"question": "Metal nitrates other than the alkali metals on heating decompose into the corresponding metal ______ along with the evolution of nitrogen peroxide and oxygen.",
"options": [
"A. oxides",
"B. hydroxides",
"C. carbonates",
"D. chlorides"
],
"answer": "A. oxides"
}
],
3: [
{
"question": "______ acid has the chemical formula HBO₂.",
"options": [
"A. Boric",
"B. Metaboric",
"C. Orthoboric",
"D. Tetraboric"
],
"answer": "B. Metaboric"
},
{
"question": "Aluminium normally occurs as ______ minerals found in the rocks of outer portion of the earth.",
"options": [
"A. oxide",
"B. silicate",
"C. carbonate",
"D. sulfide"
],
"answer": "B. silicate"
},
{
"question": "Aluminium gives ______ gas with hot concentrated H₂SO₄.",
"options": [
"A. H₂",
"B. SO₂",
"C. CO₂",
"D. O₂"
],
"answer": "B. SO₂"
},
{
"question": "Boron forms ______ bond in its compounds.",
"options": [
"A. ionic",
"B. covalent",
"C. metallic",
"D. coordinate"
],
"answer": "B. covalent"
},
{
"question": "The chemical formula of white lead is ______.",
"options": [
"A. PbCO₃",
"B. 2PbCO₃·Pb(OH)₂",
"C. PbO",
"D. Pb₃O₄"
],
"answer": "B. 2PbCO₃·Pb(OH)₂"
},
{
"question": "______ is the only element with less than four electrons in the outer most shell that is not a metal.",
"options": [
"A. Boron",
"B. Aluminium",
"C. Gallium",
"D. Indium"
],
"answer": "A. Boron"
},
{
"question": "In the Group IIIA of the periodic table, ______ is a semimetal.",
"options": [
"A. Boron",
"B. Aluminium",
"C. Gallium",
"D. Thallium"
],
"answer": "A. Boron"
},
{
"question": "Borax that occurs as a natural deposit, is called ______.",
"options": [
"A. colemanite",
"B. kernite",
"C. tincal",
"D. ulexite"
],
"answer": "C. tincal"
},
{
"question": "Cryolite is an important mineral of aluminium and its formula is ______.",
"options": [
"A. Al₂O₃",
"B. Al₂O₃·2H₂O",
"C. Na₃AlF₆",
"D. NaAlSi₃O₈"
],
"answer": "C. Na₃AlF₆"
},
{
"question": "A ______ is a substance that has different resistances to the passage of an electric current under different circumstances.",
"options": [
"A. conductor",
"B. insulator",
"C. semiconductor",
"D. superconductor"
],
"answer": "C. semiconductor"
}
],
4: [
{
question: "SO₃ is not absorbed in water directly to form H₂SO₄ because",
options: [
"A. the reaction does not go to completion",
"B. the reaction is quite slow",
"C. the reaction is highly exothermic",
"D. SO₃ is insoluble in water"
],
answer: "C"
},
{
question: "Which catalyst is used in contact process?",
options: [
"A. Fe₂O₃",
"B. V₂O₅",
"C. SO₃",
"D. Ag₂O"
],
answer: "B"
},
{
question: "Which of the following specie has the maximum number of unpaired electrons?",
options: [
"A. O₂",
"B. O₂²⁻",
"C. O₂⁻",
"D. O₂²⁻"
],
answer: "A"
},
{
question: "Out of all the elements of group VA, the highest ionization energy is possessed by",
options: [
"A. N",
"B. P",
"C. Sb",
"D. Bi"
],
answer: "A"
},
{
question: "Among group VA elements, the most electronegative element is",
options: [
"A. Sb",
"B. N",
"C. P",
"D. As"
],
answer: "B"
},
{
question: "Oxidation of NO in air produces",
options: [
"A. N₂O",
"B. N₂O₃",
"C. N₂O₄",
"D. N₂O₅"
],
answer: "C"
},
{
question: "The brown gas formed, when metal reduces HNO₃ to",
options: [
"A. N₂O₅",
"B. N₂O₃",
"C. NO₂",
"D. NO"
],
answer: "C"
},
{
question: "Laughing gas is chemically",
options: [
"A. NO",
"B. N₂O",
"C. NO₂",
"D. N₂O₄"
],
answer: "B"
},
{
question: "Out of all the elements of group VIA, the highest melting and boiling points is shown by the element",
options: [
"A. Te",
"B. Se",
"C. S",
"D. Pb"
],
answer: "A"
}
],
5: [
{
question: "Which of the following hydrogen halide is the weakest acid in solution?",
options: [
"A. HF",
"B. HBr",
"C. HI",
"D. HCl"
],
answer: "A"
},
{
question: "Chlorine heptaoxide (Cl₂O₇) reacts with water to form:",
options: [
"A. Hypochlorous acid",
"B. Chloric acid",
"C. Perchloric acid",
"D. Chlorine and oxygen"
],
answer: "C"
},
{
question: "Hydrogen bond is the strongest between the molecules of:",
options: [
"A. HF",
"B. HCl",
"C. HBr",
"D. HI"
],
answer: "A"
},
{
question: "Which halogen will react spontaneously with Au(s) to produce Au³⁺?",
options: [
"A. Br₂",
"B. F₂",
"C. I₂",
"D. Cl₂"
],
answer: "B"
},
{
question: "The anhydride of HClO₄ is:",
options: [
"A. ClO₃",
"B. ClO₂",
"C. Cl₂O₅",
"D. Cl₂O₇"
],
answer: "D"
},
{
question: "Bleaching powder may be produced by passing chlorine over:",
options: [
"A. calcium carbonate",
"B. hydrated calcium sulphate",
"C. anhydrous calcium sulphate",
"D. calcium hydroxide",
"E. magnesium hydroxide"
],
answer: "D"
},
{
question: "Which is the strongest acid?",
options: [
"A. HClO",
"B. HClO₂",
"C. HClO₃",
"D. HClO₄"
],
answer: "D"
},
{
question: "Which halogen occurs naturally in a positive oxidation state?",
options: [
"A. Fluorine",
"B. Chlorine",
"C. Bromine",
"D. Iodine"
],
answer: "D"
},
{
question: "An element that has a high ionization energy and tends to be chemically inactive would most likely to be:",
options: [
"A. an alkali metal",
"B. a transition element",
"C. a noble gas",
"D. a halogen"
],
answer: "C"
},
{
question: "Which of the following represents the correct electronic configuration of the outermost energy level of an element of zero (VIIIA) group in the ground state?",
options: [
"A. s²p⁶",
"B. s²p⁵",
"C. s²p⁴",
"D. s²p³"
],
answer: "A"
}
],
6:[
{
question: "Which of the following is a non-typical transition element?",
options: [
"A. Cr",
"B. Mn",
"C. Zn",
"D. Fe"
],
answer: "C"
},
{
question: "Which of the following is a typical transition metal?",
options: [
"A. Sc",
"B. Y",
"C. Ra",
"D. Co"
],
answer: "D"
},
{
question: "f-block elements are also called",
options: [
"A. non-typical transition elements",
"B. outer transition elements",
"C. normal transition elements",
"D. None is true"
],
answer: "D"
},
{
question: "The strength of binding energy of transition elements depends upon",
options: [
"A. number of electron pairs",
"B. number of unpaired electrons",
"C. number of neutrons",
"D. number of protons"
],
answer: "B"
},
{
question: "Group VIB of transition elements contains",
options: [
"A. Zn, Cd, Hg",
"B. Fe, Ru, Os",
"C. Cr, Mo, W",
"D. Mn, Te, Re"
],
answer: "C"
},
{
question: "Which is the formula of tetraammine chloro-nitro-platinum(IV) sulphate?",
options: [
"A. [Pt(NH₃)₄(NO₂)]SO₄",
"B. [Pt(NO₂)Cl(NH₃)₄]SO₄",
"C. [PtCl(NO₂)(NH₃)₄]SO₄",
"D. [Pt(NH₃)₄(NO₂)Cl]SO₄"
],
answer: "D"
},
{
question: "The percentage of carbon in different types of iron products is in the order of",
options: [
"A. cast iron > wrought iron > steel",
"B. wrought iron > steel > cast iron",
"C. cast iron > steel > wrought iron",
"D. cast iron = steel > wrought iron"
],
answer: "C"
},
{
question: "The colour of transition metal complexes is due to",
options: [
"A. d-d transition of electrons",
"B. paramagnetic nature of transition elements",
"C. ionization",
"D. loss of s-electrons"
],
answer: "A"
},
{
question: "Coordination number of Pt in [PtCl(NO₂)(NH₃)₄]²⁺ is",
options: [
"A. 2",
"B. 4",
"C. 1",
"D. 6"
],
answer: "D"
},
{
question: "The total number of transition elements is",
options: [
"A. 10",
"B. 14",
"C. 40",
"D. 58"
],
answer: "D"
}
],
7:[
{
question: "The state of hybridization of carbon atom in methane is:",
options: [
"A. sp³",
"B. sp²",
"C. sp",
"D. dsp²"
],
answer: "A"
},
{
question: "In t-butyl alcohol, the tertiary carbon is bonded to:",
options: [
"A. two hydrogen atoms",
"B. three hydrogen atoms",
"C. one hydrogen atom",
"D. no hydrogen atom"
],
answer: "D"
},
{
question: "Which set of hybrid orbitals has planar triangular shape?",
options: [
"A. sp³",
"B. sp",
"C. sp²",
"D. dsp²"
],
answer: "C"
},
{
question: "The chemist who synthesized urea from ammonium cyanate was:",
options: [
"A. Berzelius",
"B. Kolbe",
"C. Wholer",
"D. Lavoisier"
],
answer: "C"
},
{
question: "Linear shape is associated with which set of hybrid orbitals?",
options: [
"A. sp",
"B. sp²",
"C. sp³",
"D. dsp²"
],
answer: "A"
},
{
question: "A double bond consists of:",
options: [
"A. two sigma bonds",
"B. one sigma and one pi bond",
"C. one sigma and two pi bonds",
"D. two pi bonds"
],
answer: "B"
},
{
question: "Ethers show the phenomenon of:",
options: [
"A. position isomerism",
"B. functional group isomerism",
"C. metamerism",
"D. cis-trans isomerism"
],
answer: "C"
},
{
question: "Select from the following the one which is alcohol:",
options: [
"A. CH₃-CH₂-OH",
"B. CH₃-O-CH₃",
"C. CH₃COOH",
"D. CH₃-CH₂-Br"
],
answer: "A"
}
],
8: [
{
question: "Preparation of vegetable ghee involves",
options: [
"A. Halogenation",
"B. Hydrogenation",
"C. Hydroxylation",
"D. Dehydrogenation"
],
answer: "B"
},
{
question: "Formula of chloroform is:",
options: [
"A. CH₃Cl",
"B. CCl₄",
"C. CH₂Cl₂",
"D. CHCl₃"
],
answer: "D"
},
{
question: "The presence of a double bond in a compound is the sign of",
options: [
"A. Saturation",
"B. Unsaturation",
"C. Substitution",
"D. None"
],
answer: "B"
},
{
question: "Vinyl acetylene combines with HCl to form",
options: [
"A. Polyacetylene",
"B. Benzene",
"C. Chloroprene",
"D. Divinyl acetylene"
],
answer: "C"
},
{
question: "The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule",
options: [
"A. Hund's rule",
"B. Markovnikov's rule",
"C. Pauli's Exclusion Principle",
"D. Aufbau Principle"
],
answer: "B"
},
{
question: "Synthetic rubber is made by polymerization of",
options: [
"A. Chloroform",
"B. Acetylene",
"C. Divinylacetylene",
"D. Chloroprene"
],
answer: "D"
},
{
question: "β-β'-dichloroethyl sulphide is commonly known as",
options: [
"A. Mustard gas",
"B. Laughing gas",
"C. Phosgene gas",
"D. Bio-gas"
],
answer: "A"
},
{
question: "When methane reacts with Cl₂ in the presence of diffused sunlight the products obtained are:",
options: [
"A. Chloroform only",
"B. Carbon tetrachloride only",
"C. Chloromethane and dichloromethane",
"D. Mixture of a, b, c"
],
answer: "D"
},
{
question: "Which one of the following gases is used for artificial ripening of fruits?",
options: [
"A. Ethene",
"B. Ethyne",
"C. Methane",
"D. Propane"
],
answer: "A"
}
],
9:[
{
question: "The benzene molecule contains",
options: [
"A. Three double bonds",
"B. Two double bonds",
"C. One double bond",
"D. Delocalized π-electron charge"
],
answer: "D"
},
{
question: "Aromatic hydrocarbons are the derivatives of",
options: [
"A. normal series of paraffins",
"B. alkene",
"C. benzene",
"D. cyclohexane"
],
answer: "C"
},
{
question: "Which of the following acid can be used as a catalyst in Friedel-Crafts reactions?",
options: [
"A. AlCl₃",
"B. HNO₃",
"C. BeCl₂",
"D. NaCl"
],
answer: "A"
},
{
question: "Benzene cannot undergo",
options: [
"A. substitution reactions",
"B. addition reactions",
"C. oxidation reactions",
"D. elimination reactions"
],
answer: "D"
},
{
question: "Amongst the following, the compound that can be most readily sulphonated is",
options: [
"A. toluene",
"B. benzene",
"C. nitrobenzene",
"D. chlorobenzene"
],
answer: "A"
},
{
question: "During nitration of benzene, the active nitrating agent is",
options: [
"A. NO₃",
"B. NO₂⁻",
"C. NO₂⁺",
"D. HNO₃"
],
answer: "C"
},
{
question: "Which compound is the most reactive one?",
options: [
"A. benzene",
"B. ethene",
"C. ethane",
"D. ethyne"
],
answer: "B"
},
{
question: "The electrophile in aromatic sulphonation is:",
options: [
"A. H₂SO₄",
"B. HSO₄⁻",
"C. SO₃",
"D. SO₃²⁺"
],
answer: "C"
},
{
question: "Aromatic compounds burn with sooty flame because:",
options: [
"A. They have high percentage of hydrogen",
"B. They have a ring structure",
"C. They have high percentage of carbon",
"D. They resist reaction with air"
],
answer: "C"
},
{
question: "The conversion of n-hexane into benzene by heating in the presence of Pt is called:",
options: [
"A. Isomerization",
"B. Aromatization",
"C. Dealkylation",
"D. Rearrangement"
],
answer: "B"
}
],
10: [
{
question: "In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms?",
options: [
"A. Two",
"B. Three",
"C. One",
"D. Four"
],
answer: "C. One"
},
{
question: "The reactivity order of alkyl halides for a particular alkyl group is:",
options: [
"A. Fluoride → Chloride → Bromide → Iodide",
"B. Chloride → Bromide → Fluoride → Iodide",
"C. Iodide → Bromide → Chloride → Fluoride",
"D. Bromide → Iodide → Chloride → Fluoride"
],
answer: "C. Iodide → Bromide → Chloride → Fluoride"
},
{
question: "When CO₂ is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is:",
options: [
"A. Propane",
"B. Propanoic acid",
"C. Propanal",
"D. Propanol"
],
answer: "B. Propanoic acid"
},
{
question: "Grignard reagent is reactive due to:",
options: [
"A. the presence of halogen atom",
"B. the presence of Mg atom",
"C. the polarity of C-Mg bond",
"D. none of the above"
],
answer: "C. the polarity of C-Mg bond"
},
{
question: "SN₂ reactions can be best carried out with:",
options: [
"A. Primary alkyl halides",
"B. Secondary alkyl halides",
"C. Tertiary alkyl halides",
"D. All the three"
],
answer: "A. Primary alkyl halides"
},
{
question: "Elimination bimolecular reactions involve:",
options: [
"A. first order kinetics",
"B. second order kinetics",
"C. third order kinetics",
"D. zero order kinetics"
],
answer: "B. second order kinetics"
},
{
question: "For which mechanisms, the first step involved is the same?",
options: [
"A. E1 and E2",
"B. E2 and SN²",
"C. SN¹ and E1",
"D. E1 and SN¹"
],
answer: "C. SN¹ and E1"
},
{
question: "Alkyl halides are considered to be very reactive compounds towards nucleophiles, because:",
options: [
"A. they have an electrophilic carbon",
"B. they have an electrophilic carbon and a good leaving group",
"C. they have an electrophilic carbon and a bad leaving group",
"D. they have a nucleophilic carbon and a good leaving group"
],
answer: "B. they have an electrophilic carbon and a good leaving group"
},
{
question: "The rate of E1 reaction depends upon:",
options: [
"A. the concentration of substrate",
"B. the concentration of nucleophile",
"C. the concentration of substrate as well as nucleophile",
"D. None of the above"
],
answer: "A. the concentration of substrate"
},
{
question: "Which one of the following is not a nucleophile?",
options: [
"A. H₂O",
"B. H₂S",
"C. BF₃",
"D. NH₃"
],
answer: "C. BF₃"
}
],
11: [
{
question: "Which compound shows hydrogen bonding?",
options: [
"A. C₂H₆",
"B. C₂H₅Cl",
"C. CH₃-O-CH₃",
"D. C₂H₅OH"
],
answer: "D. C₂H₅OH"
},
{
question: "Which compound shows maximum hydrogen bonding with water?",
options: [
"A. CH₃OH",
"B. C₂H₅OH",
"C. CH₃-O-CH₃",
"D. C₆H₅OH"
],
answer: "A. CH₃OH"
},
{
question: "Which compound is more soluble in water?",
options: [
"A. CH₃OH",
"B. C₂H₅OH",
"C. CH₃COCH₃",
"D. n-Hexanol"
],
answer: "A. CH₃OH"
},
{
question: "Which compound will have the maximum repulsion with H₂O?",
options: [
"A. C₂H₆",
"B. C₂H₅OH",
"C. CH₃CH₂CH₂OH",
"D. CH₃-O-CH₃"
],
answer: "A. C₂H₆"
},
{
question: "Ethanol can be converted into ethanoic acid by",
options: [
"A. Hydrogenation",
"B. Hydration",
"C. Oxidation",
"D. Fermentation"
],
answer: "C. Oxidation"
},
{
question: "Which enzyme is not involved in fermentation of starch?",
options: [
"A. Diastase",
"B. Zymase",
"C. Urease",
"D. Invertase"
],
answer: "C. Urease"
},
{
question: "Which compound is called a universal solvent?",
options: [
"A. H₂O",
"B. CH₃OH",
"C. C₂H₅OH",
"D. CH₃-O-CH₃"
],
answer: "A. H₂O"
},
{
question: "Methyl alcohol is not used",
options: [
"A. as a solvent",
"B. as an anti-freezing agent",
"C. as a substitute for petrol",
"D. for denaturing of ethyl alcohol"
],
answer: "C. as a substitute for petrol"
},
{
question: "Rectified spirit contains alcohol about",
options: [
"A. 80%",
"B. 85%",
"C. 90%",
"D. 95%"
],
answer: "D. 95%"
},
{
question: "According to Lewis concept ethers behave as",
options: [
"A. Acid",
"B. Base",
"C. Acid as well as a base",
"D. None of them"
],
answer: "B. Base"
}
],
12:[
{
question: "The carbon atom of a carbonyl group is",
options: [
"A. sp hybridized",
"B. sp² hybridized",
"C. sp³ hybridized",
"D. none of these"
],
answer: "B. sp² hybridized"
},
{
question: "Formalin is",
options: [
"A. 10% solution of formaldehyde in water",
"B. 20% solution of formaldehyde in water",
"C. 40% solution of formaldehyde in water",
"D. 60% solution of formaldehyde in water"
],
answer: "C. 40% solution of formaldehyde in water"
},
{
question: "Which of the following will have the highest boiling point?",
options: [
"A. Methanal",
"B. Ethanal",
"C. Propanal",
"D. 2-Hexanone"
],
answer: "D. 2-Hexanone"
},
{
question: "Ketones are prepared by the oxidation of",
options: [
"A. Primary alcohol",
"B. Secondary alcohol",
"C. Tertiary alcohol",
"D. all of these"
],
answer: "B. Secondary alcohol"
},
{
question: "Acetone reacts with HCN to form a cyanohydrin. It is an example of",
options: [
"A. Electrophilic addition",
"B. Electrophilic substitution",
"C. Nucleophilic addition",
"D. Nucleophilic substitution"
],
answer: "C. Nucleophilic addition"
},
{
question: "Which of the following compounds will not give iodoform test on treatment with I₂/NaOH?",
options: [
"A. Acetaldehyde",
"B. Acetone",
"C. Butanone",
"D. 3-Pentanone"
],
answer: "D. 3-Pentanone"
},
{
question: "Which of the following compounds will react with Tollen's reagent?",
options: [
"A. CH₃-CHO",
"B. CH₃-CO-CH₃",
"C. CH₃-COOH",
"D. CH₃-CO-CH₂-CH₃"
],
answer: "A. CH₃-CHO"
},
{
question: "Cannizzaro's reaction is not given by",
options: [
"A. Formaldehyde",
"B. Acetaldehyde",
"C. Benzaldehyde",
"D. Trimethylacetaldehyde"
],
answer: "B. Acetaldehyde"
},
{
question: "Which of the following reagents will react with both aldehydes and ketones?",
options: [
"A. Grignard reagent",
"B. Tollen's reagent",
"C. Fehling's reagent",
"D. Benedict's reagent"
],
answer: "A. Grignard reagent"
}
],
13: [
{
question: "Acetic acid is manufactured by",
options: [
"A. distillation",
"B. fermentation",
"C. ozonolysis",
"D. esterification"
],
answer: "B. fermentation"
},
{
question: "A carboxylic acid contains",
options: [
"A. a hydroxyl group",
"B. a carboxyl group",
"C. a hydroxyl and carboxyl group",
"D. a carboxyl and an aldehyde group"
],
answer: "C. a hydroxyl and carboxyl group"
},
{
question: "Which acid is used in the manufacture of synthetic fibre?",
options: [
"A. formic acid",
"B. oxalic acid",
"C. carbonic acid",
"D. acetic acid"
],
answer: "D. acetic acid"
},
{
question: "Which following derivative can not be prepared directly from acetic acid?",
options: [
"A. acetamide",
"B. acetyl chloride",
"C. acetic anhydride",
"D. ethyl acetate"
],
answer: "C. acetic anhydride"
},
{
question: "Which reagent is used to reduce a carboxylic group to an alcohol?",
options: [
"A. H₂/Ni",
"B. H₂/Pt",
"C. NaBH₄",
"D. LiAlH₄"
],
answer: "D. LiAlH₄"
},
{
question: "The solution of which acid is used for seasoning of food?",
options: [
"A. formic acid",
"B. acetic acid",
"C. benzoic acid",
"D. butanoic acid"
],
answer: "B. acetic acid"
},
{
question: "Organic compounds X and Y react together to form organic compound Z. What type of compounds can X, Y and Z be?",
options: [
"A. X: alcohol, Y: ester, Z: acid",
"B. X: acid, Y: ester, Z: alcohol",
"C. X: ester, Y: alcohol, Z: acid",
"D. X: alcohol, Y: acid, Z: ester"
],
answer: "D. X: alcohol, Y: acid, Z: ester"
},
{
question: "An aqueous solution of an organic compound reacts with sodium carbonate to produce carbon dioxide gas. Which one of the following could be the organic compound?",
options: [
"A. CH₃-CH₂-CH₃",
"B. CH₃-CHO",
"C. CH₃COOC₂H₅",
"D. CH₃-CH₂-COOH"
],
answer: "D. CH₃-CH₂-COOH"
},
{
question: "Which of the following is not a fatty acid?",
options: [
"A. propanoic acid",
"B. acetic acid",
"C. phthalic acid",
"D. butanoic acid"
],
answer: "C. phthalic acid"
},
{
question: "Acetamide is prepared by",
options: [
"A. heating ammonium acetate",
"B. heating methyl cyanide",
"C. heating ethyl acetate",
"D. the hydrolysis of methyl cyanide"
],
answer: "A. heating ammonium acetate"
}
],
14: [
{
question: "In which of these processes are small organic molecules made into macromolecules?",
options: [
"A. the cracking of petroleum fractions",
"B. the fractional distillation of crude oil",
"C. the polymerization of ethene",
"D. the hydrolysis of proteins"
],
answer: "C. the polymerization of ethene"
},
{
question: "Which of these polymers is an addition polymer?",
options: [
"A. nylon-6,6",
"B. polystyrene",
"C. terylene",
"D. epoxy resin"
],
answer: "B. polystyrene"
},
{
question: "Which of these polymers is a synthetic polymer?",
options: [
"A. animal fat",
"B. starch",
"C. cellulose",
"D. polyester"
],
answer: "D. polyester"
},
{
question: "Plastics are a pollution problem because many plastics",
options: [
"A. are made from petroleum",
"B. are very inflammable",
"C. burn to produce toxic fumes",
"D. decompose to produce toxic products"
],
answer: "C. burn to produce toxic fumes"
},
{
question: "The fibre which is made from acrylonitrile as monomer:",
options: [
"A. PVC",
"B. rayon fibre",
"C. acrylic fibre",
"D. polyester fibre"
],
answer: "C. acrylic fibre"
},
{
question: "A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called a",
options: [
"A. fibre",
"B. plastic",
"C. varnish",
"D. polyamide resin"
],
answer: "B. plastic"
},
{
question: "Vegetable oils are",
options: [
"A. unsaturated fatty acids",
"B. glycerides of unsaturated fatty acids",
"C. glycerides of saturated fatty acids",
"D. essential oils obtained from plants"
],
answer: "B. glycerides of unsaturated fatty acids"
},
{
question: "Which one of the following elements is not present in all proteins?",
options: [
"A. carbon",
"B. hydrogen",
"C. nitrogen",
"D. sulphur"
],
answer: "D. sulphur"
},
{
question: "Which one of the following nitrogenous bases is not present in RNA?",
options: [
"A. cytosine",
"B. adenine",
"C. thiamine",
"D. uracil"
],
answer: "C. thiamine"
},
{
question: "Which one of the following enzymes brings about the hydrolysis of fats?",
options: [
"A. urease",
"B. maltase",
"C. zymase",
"D. lipase"
],
answer: "D. lipase"
},
{
question: "The reaction between fat and NaOH is called",
options: [
"A. esterification",
"B. hydrogenolysis",
"C. fermentation",
"D. saponification"
],
answer: "D. saponification"
},
{
question: "Which one of the following statements about glucose and sucrose is incorrect?",
options: [
"A. both are soluble in water",
"B. both are naturally occurring",
"C. both are carbohydrates",
"D. both are disaccharides"
],
answer: "D. both are disaccharides"
}
],
15:[
{
question: "Which three elements are needed for the healthy growth of plants?",
options: [
"A. N, S, P",
"B. N, Ca, P",
"C. N, P, K",
"D. N, K, C"
],
answer: "C. N, P, K"
},
{
question: "Which woody raw material is used for the manufacture of paper pulp?",
options: [
"A. Cotton",
"B. Bagasse",
"C. Poplar",
"D. Rice straw"
],
answer: "C. Poplar"
},
{
question: "The nitrogen present in some fertilizers helps plants",
options: [
"A. to fight against diseases",
"B. to produce fat",
"C. to undergo photosynthesis",
"D. to produce protein"
],
answer: "D. to produce protein"
},
{
question: "Phosphorus helps the growth of",
options: [
"A. root",
"B. leave",
"C. stem",
"D. seed"
],
answer: "A. root"
},
{
question: "Micro-nutrients are required in quantity ranging from",
options: [
"A. 4-40g",
"B. 6-200g",
"C. 6-200kg",
"D. 4-40kg"
],
answer: "B. 6-200g"
},
{
question: "During the manufacturing process of cement the temperature of the decomposition zone goes up to",
options: [
"A. 600°C",
"B. 800°C",
"C. 1000°C",
"D. 1200°C"
],
answer: "C. 1000°C"
},
{
question: "The word paper is derived from the name of which reedy plant?",
options: [
"A. Rose",
"B. Sun flower",
"C. Papyrus",
"D. Water Hyacinth"
],
answer: "C. Papyrus"
},
{
question: "Which is not a calcarious material?",
options: [
"A. lime",
"B. clay",
"C. marble",
"D. marine shell"
],
answer: "B. clay"
},
{
question: "How many zones through which the charge passes in a rotary kiln?",
options: [
"A. 4",
"B. 3",
"C. 2",
"D. 5"
],
answer: "A. 4"
},
{
question: "Ammonium nitrate fertilizer is not used for which crop?",
options: [
"A. Cotton",
"B. Wheat",
"C. Sugarcane",
"D. Paddy rice"
],
answer: "D. Paddy rice"
}
],
16: [
{
question: "The pH range of the acid rain is",
options: [
"A. 7-6.5",
"B. 6.5-6",
"C. 6-5.6",
"D. less than 5"
],
answer: "D. less than 5"
},
{
question: "Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects",
options: [
"A. eyes",
"B. ears",
"C. stomach",
"D. nose"
],
answer: "A. eyes"
},
{
question: "To avoid the formation of toxic compounds with chlorine which substance is used for disinfecting water?",
options: [
"A. KMnO₄",
"B. O₃",
"C. Alums",
"D. Chloramines"
],
answer: "B. O₃"
},
{
question: "A single chloride free radical can destroy how many ozone molecules?",
options: [
"A. 100",
"B. 100000",
"C. 10000",
"D. 10"
],
answer: "B. 100000"
},
{
question: "Fungicides are the pesticides which",
options: [
"A. control the growth of fungus",
"B. kill insects",
"C. kill plants",
"D. kill herbs"
],
answer: "A. control the growth of fungus"
},
{
question: "Ecosystem is a smaller unit of",
options: [
"A. lithosphere",
"B. hydrosphere",
"C. atmosphere",
"D. biosphere"
],
answer: "D. biosphere"
},
{
question: "The main pollutant of leather tanneries in the waste water is due to the salt of:",
options: [
"A. lead",
"B. chromium(VI)",
"C. copper",
"D. chromium(III)"
],
answer: "D. chromium(III)"
},
{
question: "In purification of potable water the coagulant used is",
options: [
"A. nickel sulphate",
"B. copper sulphate",
"C. barium sulphate",
"D. alum"
],
answer: "D. alum"
},
{
question: "The temperature in the non-rotating chamber in the incineration of industrial and hazardous waste process has a range",
options: [
"A. 900 to 1000°C",
"B. 250 to 500°C",
"C. 950 to 1300°C",
"D. 500 to 900°C"
],
answer: "C. 950 to 1300°C"
},
{
question: "Newspaper can be recycled again and again by how many times?",
options: [
"A. 2",
"B. 3",
"C. 4",
"D. 5"
],
answer: "B. 3"
}
};
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