Practice CBSE Class 12 Chemistry Alcohols Phenols and Ethers MCQs Set B provided below. The MCQ Questions for Class 12 Unit 7 Alcohols Phenols and Ethers Chemistry with answers and follow the latest CBSE/ NCERT and KVS patterns. Refer to more Chapter-wise MCQs for CBSE Class 12 Chemistry and also download more latest study material for all subjects
MCQ for Class 12 Chemistry Unit 7 Alcohols Phenols and Ethers
Class 12 Chemistry students should review the 50 questions and answers to strengthen understanding of core concepts in Unit 7 Alcohols Phenols and Ethers
Unit 7 Alcohols Phenols and Ethers MCQ Questions Class 12 Chemistry with Answers
Question. Lucas reagent is
(a) conc. HCl and anhydrous ZnCl2
(b) conc. HNO3 and hydrous ZnCl2
(c) conc. HCl and hydrous ZnCl2
(d) conc. HNO3 and anhydrous ZnCl2.
Answer : A
Question. Methanol is industrially prepared by
(a) oxidation of CH4 by steam at 900ºC
(b) reduction of HCHO using LiAIH4
(c) reaction of HCHO with a solution of NaOH
(d) reduction of CO using H2 and ZnO–Cr2O3
Answer : D
Question. The major products C and D formed in the following reactions respectively are H3C−CH2−CH2−O−C(CH3)3 excess HI C + D
(a) H3C−CH2−CH2−I and I−C(CH3)3
(b) H3C−CH2−CH2−OH and I−C(CH3)3
(c) H3C−CH2−CH2−I and HO−C(CH3)3
(d) H3C−CH2−CH2−OH and HO−C(CH3)3
Answer : A
Question. The heating of phenyl methyl ether with HI produces
(a) iodobenzene
(b) phenol
(c) benzene
(d) ethyl chloride.
Answer : B
Question. Among the following sets of reactants which one produces anisole?
(a) CH3CHO ; RMgX
(b) C6H5OH ; NaOH ; CH3I
(c) C6H5OH ; neutral FeCl3
(d) C6H5CH3 ; CH3COCl ; AlCl3
Answer : B
Question. The major organic product in the reaction is CH3 – O – CH(CH3)2 + HI products
(a) CH3I + (CH3)2CHOH
(b) CH3OH + (CH3)2CHI
(c) ICH2OCH(CH3)2
(d) CH2OC(CH3)2
Answer : A
Question. Ethyl chloride is converted into diethyl ether by
(a) Perkins reaction
(b) Grignard reaction
(c) Wurtz synthesis
(d) Williamson’s synthesis.
Answer : D
Question. Which one of the following compounds is resistant to nucleophilic attack by hydroxyl ions?
(a) Diethyl ether
(b) Acetonitrile
(c) Acetamide
(d) Methyl acetate
Answer : A
Question. The compound which does not react with sodium is
(a) CH3COOH
(b) CH3CHOHCH3
(c) C2H5OH
(d) CH3OCH3
Answer : D
Question. Which one is formed when sodium phenoxide is heated with ethyl iodide?
(a) Phenetole
(b) Ethyl phenyl alcohol
(c) Phenol
(d) None of these
Answer : A
Question. Intermolecular hydrogen bonding is strongest in :
(a) Methylamine
(b) Phenol
(c) Formaldehyde
(d) Methanol
Answer : D
Question. Propan-1-ol can be prepared from propene by :
(a) H2O / H2SO4
(b) Hg(OAc)2 / H2O followed by NaBH4
(c) B2H6 followed by H2O2
(d) CH3CO2H/H2SO4
Answer : A
Question. C2H5O Hand C6H5OHcan be distinguished by
(a) Br2 + H2O
(b) FeCI3
(c) I2 + NaOH
(d) Both (b) and (c)
Answer : D
Question. 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
Answer : C
Question. 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
Answer : C
Question. 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
Answer : B
Question. 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.
Answer : D
Question. Which of the following is a primary halide?
(a) Iso-propyl iodide
(b) Secondary butyl iodide
(c) Tertiary butyl bromide
(d) Neohexyl chloride
Answer : A
Question. 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
Answer : C
Question. The formation of diethyl ether from ethanol is based on :
(a) Dehydrogenation reaction
(b) Hydrogenation reaction
(c) Dehydration reaction
(d) Heterolytic fission reaction
Answer : D
Question. 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
Answer : A
Question. Ethanol can be prepared more easily by which reaction ?
(i) CH3CH2Br + H2O → CH3CH2OH
(ii) CH3CH2Br + Ag2O (in boiling water)→ CH3CH2OH
(a) by (i) reaction
(b) by (ii) reaction
(c) Both reactions proceed at same rate
(d) by none
Answer : C
Important Practice Resources for Class 12 Chemistry
MCQs for Unit 7 Alcohols Phenols and Ethers Chemistry Class 12
Students can use these MCQs for Unit 7 Alcohols Phenols and Ethers to quickly test their knowledge of the chapter. These multiple-choice questions have been designed as per the latest syllabus for Class 12 Chemistry released by CBSE. Our expert teachers suggest that you should practice daily and solving these objective questions of Unit 7 Alcohols Phenols and Ethers to understand the important concepts and better marks in your school tests.
Unit 7 Alcohols Phenols and Ethers NCERT Based Objective Questions
Our expert teachers have designed these Chemistry MCQs based on the official NCERT book for Class 12. We have identified all questions from the most important topics that are always asked in exams. After solving these, please compare your choices with our provided answers. For better understanding of Unit 7 Alcohols Phenols and Ethers, you should also refer to our NCERT solutions for Class 12 Chemistry created by our team.
Online Practice and Revision for Unit 7 Alcohols Phenols and Ethers Chemistry
To prepare for your exams you should also take the Class 12 Chemistry MCQ Test for this chapter on our website. This will help you improve your speed and accuracy and its also free for you. Regular revision of these Chemistry topics will make you an expert in all important chapters of your course.
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