Question

Find the correct option(s) considering the following reactions sequence:


Given: Vapor density of C is 29 and E is anesthetic in nature.

• A. F is salicylic acid
• B. D on reduction with $LiAl{H}_4$ will give Grain alcohol
• C. C on reduction with $NaB{H}_4$ will give simplest secondary alcohol
• D. B on reduction with $C{H}_2{N}_2/B{F}_3$ will give anisole

Answer 1

Answer: (B), (C), (D)

The correct options are
B D on reduction with $LiAl{H}_4$ will give Grain alcohol
C C on reduction with $NaB{H}_4$ will give simplest secondary alcohol
D B on reduction with $C{H}_2{N}_2/B{F}_3$ will give anisole

Reaction of benzene with propylene gives isopropylbenzene (A) which is also known as cumeneocess. Cumene process converts (A) into phenol (B) and acetone (C).
Vapour Density of C given is 29. Hence, Molar Mass= $2\times V.D.$
Hence, C is Acetone with MM=58g/mol.
(C) upon haloform reaction generates acetic acid (D) and chloroform (E), which is an anesthetic.
Phenol (B) gives Reimer Tiemann reaction to produce salicylaldehyde (F).


Explanation:
(b) Acetic acid (D) on reduction with $LiAl{H}_4$ produces ethanol which is known as grain alcohol in its purest form.
(c) Acetone (C) on reduction with $NaB{H}_4$ gives isopropyl alcohol which is simplest $2^o$ alcohol.
(d) Phenol (B) on reduction with $C{H}_2{N}_2/B{F}_3$ produces anisole ($Ph-O-C{H}_3$).