NCERT Exemplar Problems Class 12 Chemistry Chapter 14 Biomolecules Multiple Choice Questions Single Correct Answer Type Question 1. Glycogen is a branched chain polymer of a-D-glucose units in which chain is formed by C1-C4 glycosidic linkage whereas branching occurs by the formation of C1-C6 glycosidic linkage. Structure of glycogen is similar to (a) amylose (b)…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 13 Amines Multiple Choice Questions Single Correct Answer Type Question 1. Which of the following is a 3° amine? (a) 1 -Methylcyclohexylamine (c) tert-Butylamine Solution: (b) Question 2. The correct IUPAC name for CH2 = CHCH2NHCH3 is (a) allylmethylamine (b) 2-amino-4-pentene (c) 4-aminopent-l-ene . (d) N-methylprop-2-en-l-amine. Solution: Question…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids Multiple Choice Questions Single Correct Answer Type Question 1. Addition of water to alkynes occurs in acidic medium and in the presence of Hg2+ ions as a catalyst. Which one of the following product will be formed on addition of water to…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 11 Alcohols, Phenols and Ethers Multiple Choice Questions Single Correct Answer Type Question 1. Monochlorination of toluene in sunlight followed by hydrolysis with aq. NaOH yields. (a) o-Cresol (b) w-Cresol (c) 2, 4-Dihydroxytoluene (d) Benzyl alcohol Solution: (d) Monochlorination of toluene in sunlight gives benzyl chloride. On hydrolysis…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenes Multiple Choice Questions Single Correct Answer Type Question 1. The order of reactivity of following alcohols with halogen acids is Solution: (b) The reactivity order of alcohols towards halogen acids is 3° > 2° > 1°, since the stability of carbocations is of the…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 9 Coordination Compounds Multiple Choice Questions Single Correct Answer Type Question 1. Which of the following complex formed by Cu2+ ions is most stable? Solution: (b) The greater the value of log K, the greater will be stability of complex compound formed. For reaction, For this reaction, log…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 8 The d- and f-Block Elements Multiple Choice Questions Single Correct Answer Type Question 1. Electronic configuration of a transition element X in +3 oxidation state is [Ar] 3d5. What is its atomic number? (a) 25 (b) 26 (c) 27 (d) 24 Solution: Question 2. The electronic configuration…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 7 The p-Block Elements Multiple Choice Questions Single Correct Answer Type Question 1. On addition of cone. H2SO4 to a chloride salt, colourless fumes are evolved but in case of iodide salt, violet fumes come out. This is because Solution: (c) HI formed during reaction is oxidized to…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements Multiple Choice Questions Single Correct Answer Type Question 1. In the extraction of chlorine by electrolysis of brine, Solution: (a) Extraction of chlorine from brine is based on the oxidation reaction of Question 2. When copper ore is mixed…
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NCERT Exemplar Problems Class 12 Chemistry Chapter 5 Surface Chemistry Multiple Choice Questions Single Correct Answer Type Question 1. Which of the following process does not occur at the interface of phases? (a) Crystallisation (b) Heterogeneous catalysis (c) Homogeneous catalysis ’ (d) Corrosion – Solution: (c) There is no homogeneous catalysis. Question 2. At the…
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