Carboxylic Acids and their Derivatives - Result Question 30

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

(2012)

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(a) $T$ is soluble in hot aqueous $NaOH$

(b) $U$ is optically active

(c) Molecular formula of $W$ is $C _{10} H _{18} O _4$

(d) $V$ gives effervescence on treatment with aqueous $NaHCO _3$

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Answer:

Correct Answer: 16. (a, c, d)

Solution:

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

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(b) $LiAlH _4$ 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 $CrO _3 \mid H^{+}$undergo oxidation to diacid which gives effervescence with $NaHCO _3$.

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