Alcohols Phenols and Ethers MCQs

1. Which one of the following is termed as benzyl alcohol?

A. C6H5OH

B. C6H5CH(OH)2

C. C6H5CH2OH

D. C6H5COOH

✅ The correct answer is option C.

2. Which one of the following is also known as the lactic acid?

A. 3-Hydroxy propanoic acid

B. 2-Hydroxy propanoic acid

C. 2-hydroxy butanoic acid

D. 3-hydroxy butanoic acid

✅ The correct answer is option B.

3. Which one of the following is also known as the tartaric acid?

A. 2 3-dihydroxy butane 1 4 -dioic acid

B. 2 3 -dihydroxy butanedioic acid

C. 2 3 -dihydroxy butanedioic acid

D. 2 2 -dihydroxy butanoic acid

✅ The correct answer is option A.

4. Water gas heated at 450°C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce

A. Methanal

B. Methanol

C. Carbonic acid

D. Methane

✅ The correct answer is option B.

5. The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called

A. Mother liquor

B. Filterate

C. Extract

D. Molasses

✅ The correct answer is option D.

6. The formula of starch is

A. C12H22O11

B. C6H10O5

C. (C6H10O5)n

D. C6H12O6

✅ The correct answer is option C.

7. The process of fermentation of starch involves many enzymes the sequence of enzymes used are

A. Diastase-maltase-zymase

B. Zymase-maltase-diastase

C. Maltase-diastase-zymase

D. Diastase-zymase-maltase

✅ The correct answer is option A.

8. The rectified spirit contains

A. 12% alcohol

B. 90% alcohol

C. 95% alcohol

D. 100% alcohol

✅ The correct answer is option C.

9. K2Cr2O7/H2SO4 generate

A. Oxygen

B. Hydrogen

C. Nascent oxygen[O]

D. Nascent hydrogen[H]

✅ The correct answer is option C.

10. The oxidation of isopropyl alcohol will yield

A. Propane

B. Propanol

C. Propanone

D. Propanoic acid

✅ The correct answer is option C.