17
MCQ (Multiple Correct Answer)
Which of the following are used to convert RCHO into $\mathrm{RCH}_2 \mathrm{OH}$ ?
A
$\mathrm{H}_2 / \mathrm{Pd}$
B
$\mathrm{LiAlH}_4$
C
$\mathrm{NaBH}_4$
D
Reaction with $R M g X$ followed by hydrolysis
18
MCQ (Multiple Correct Answer)
Which of the following reactions will yield phenol?
A
B
C
D
19
MCQ (Multiple Correct Answer)
Which of the following reagents can be used to oxidise primary alcohols to aldehydes?
A
$\mathrm{CrO}_3$ in anhydrous medium
B
$\mathrm{KMnO}_4$ in acidic medium
C
Pyridinium chlorochromate
D
Heat in the presence of Cu at 573 K
20
MCQ (Multiple Correct Answer)
Phenol can be distinguished from ethanol by the reactions with ............ .
A
$\mathrm{Br}_2 /$ water
B
Na
C
neutral $\mathrm{FeCl}_3$
D
All of these
21
MCQ (Multiple Correct Answer)
Which of the following are benzylic alcohols?
A
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{OH}$
B
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_2 \mathrm{OH}$
C
D
