Question

Match the column I with column II and mark the appropriate choice.

• A. (A)=(iv), (B)=(iii), (C)=(i), (D)=(ii)
• B. (A)=(i), (B)=(iii), (C)=(ii), (D)=(iv)
• C. (A)=(iii), (B)=(iv), (C)=(ii), (D)=(i)
• D. (A)=(iv), (B)=(i), (C)=(ii), (D)=(iii)

Answer 1

Answer: (C)

(A)=(iii), (B)=(iv), (C)=(ii), (D)=(i)

(A) $C{H}_{3}C{H}_{2}OH,H_{3}C-O-C{H}_3\to$ Since both have the same molecular formula but different functional groups, thus both are functional isomers (iii).

(B) $C_2{H}_{5}CO{C}_2{H}_5,C_3{H}_{7}COC{H}_3\to$ Since both have different alkyl groups attached to two sides of the same functional group. Thus, both are metamers (iv).

(C) $C_6{H}_{5}OH,C_6{H}_{5}O\to$ First compound is a carbonyl compound containing at least one α-hydrogen atom that is converted to the second compound, which is an enol, by the transfer of an α-hydrogen onto the oxygen atom (ii).

(D) $C{H}_{3}C{H}_{2}C{H}_{2}OH,C{H}_3-CHOH-C{H}_3\to$

Since both have the same functional group but at different positions, thus both are position isomers (i).