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JIPMER 2009

Exam: JIPMER
Year: 2009
Subject: Chemistry
Chapter: Hydrocarbons

JIPMER 2009 · Chemistry · Hydrocarbons

The homologue of ethyne is

The homologue of ethyne is

Options

A $\mathrm{C}_2 \mathrm{H}_2$
B $\mathrm{C}_2 \mathrm{H}_6$
C $\mathrm{C}_3 \mathrm{H}_8$
D $\mathrm{C}_3 \mathrm{H}_4$

Correct answer

D. $\mathrm{C}_3 \mathrm{H}_4$

Step-by-step solution

Ethyne is nothing but

\mathrm{C}_2 \mathrm{H}_2

ie, acetylene which can be represented by general molecular formula

\mathrm{C}_n \mathrm{H}_{2 n-2}

. Only

\mathrm{C}_3 \mathrm{H}_4

tallies with the formula. Hence,

\mathrm{C}_3 \mathrm{H}_4

is the homologue of

\mathrm{C}_2 \mathrm{H}_2

.

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