MCQ
The number of possible alkynes with molecular formula ${C_5}{H_8}$ is
  • A
    $2$
  • B
    $3$
  • C
    $4$
  • $5$

Answer

Correct option: D.
$5$
d
$\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}$

This molecular formula is applicable for homologous series ether (-O-) a bivalent functional group and as we know ether with minimum four-C shows metamerism. $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{O}-\mathrm{CH}_{2}-\mathrm{CH}_{3}\, \&\, \mathrm{CH}_{3}-\mathrm{O}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{3}$ are metamers.

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