CBSE Class 12 Alcohols Phenols and Ethers with Answers Multiple Choice Questions with Answers. MCQ Questions Class 12 Alcohols Phenols and Ethers with Answers with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Alcohols Phenols and Ethers with Answers MCQs with Answers to know their preparation level.
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MCQ Questions Class 12 Alcohols Phenols and Ethers with Answers - Set - 3
Question 1:
Chloropicrin is obtained by the reaction of
(a) steam on carbon tetrachloride
(b) nitric acid on chlorobenzene
(c) chlorine on picric acid
(d) nitric acid on chloroform
Correct Answer – (A)
Question 2:
An organic compound X on treatment with pyridinium chlorochromate in dichloromethane gives compound Y. Compound Y reacts with I2 and alkali to form triiodomethane. The compound ‘X’ is
(a) C2H5OH
(b) CH3CHO
(c) CH3COCH3
(d) CH3COOH
Correct Answer – (C)
Question 3:
CH3OC2H5 and (CH3)3 C – OCH3 are treated with hydroiodic acid. The fragments obtained after reactions are
(a) CH3I + HOC2H5; (CH3)3 Cl + HOCH3
(b) CH3OH + C2H5I; (CH3)3 Cl + HOCH3
(c) CH3OH + C2H5I; (CH3)3COH + CH3I
(d) CH3I + HOC2H5; CH3I + (CH3)3 COH
Correct Answer – (D)
Question 4:
The following reaction is known as
(a) Perkin reaction
(b) Gattermann reaction
(c) Kolbe reaction
(d) Gattermann-a.ldehyde reaction
Correct Answer – (D)
Question 5:
Phenol is more acidic than alcohol because
(a) phenol is more soluble in polar solvents
(b) alcohol does not lose hydrogen atom
(c) phenoxide ion is stabilised by resonance
(d) phenoxide ion doesn’t exhibit resonance
Correct Answer – (C)
MCQ Questions Class 12 Alcohols Phenols and Ethers With Answers
Question 6:
The formation of diethyl ether from ethanol is based on :
(a) Dehydrogenation reaction
(b) Hydrogenation reaction
(c) Dehydration reaction
(d) Heterolytic fission reaction
Correct Answer – (D)
Question 7:
Which of the following is a primary halide?
(a) Iso-propyl iodide
(b) Secondary butyl iodide
(c) Tertiary butyl bromide
(d) Neohexyl chloride
Correct Answer – (A)
Question 8:
Which of the following compound would not evolve CO2 when treated with NaHCO3 solution?
(a) Salicylic acid
(b) Phenol
(c) Benzoic acid
(d) 4-nitrobenzoic acid
Correct Answer – (B)
Question 9:
Picric acid is a stronger acid than acetic acid and benzoic acid. It contains
(a) —SO3H group
(b) two—COOH groups
(c) phenolic group
(d) three—COOH groups
Correct Answer – (C)
Question 10:
C2H5O Hand C6H5OHcan be distinguished by
(a) Br2 + H2O
(b) FeCI3
(c) I2 + NaOH
(d) Both (b) and (c)
Correct Answer – (D)
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