Carboxylic Acids and their Derivatives 2 Question 16

16. With reference to the scheme given, which of the given statement(s) about T,U,V and W is/are correct?

(2012)

(a) T is soluble in hot aqueous NaOH

(b) U is optically active

(c) Molecular formula of W is $\mathrm{C}{10} \mathrm{H}{18} \mathrm{O}_{4}$

(d) V gives effervescence on treatment with aqueous NaHCO3

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Answer:

Correct Answer: 16. (c)

Solution:

  1. (a) T undergoes an ester hydrolysis in hot aqueous alkali as

(b) LiAlH4 reduces ester to alcohol as " U " No chiral carbon optically inactive.

(c) U on treatment with excess of acetic anhydride forms a diester as

(d) U on treatment with $\mathrm{CrO}{3} \mid \mathrm{H}^{+}undergooxidationtodiacidwhichgiveseffervescencewith\mathrm{NaHCO}{3}$.