Which of the following compounds are gem-dihalides? a. Ethylidene… - Vidyadip

MCQ

Which of the following compounds are gem$-$dihalides?
$a.$ Ethylidene chloride
$b.$ Ethylene dichloride
$c.$ Methylene chloride
$d.$ Benzyl chloride

A
$a$ and $b$
✓
$a$ and $c$
C
$b$ and $c$
D
$a$ and $d$

✓

Answer

Correct option: B.

$a$ and $c$

Gem$-$dihalides are those dihalides in which two halogen atoms are bonded to the same carbon atom.

$\text{Cl}_2-\text{CH}-\text{CH}_3$ Ethylidene chloride
$\text{Cl}-\text{H}_2\text{C}-\text{CH}_2-\text{Cl}$ Ethylene dichloride
$\text{CH}_2\text{Cl}_2$ Methylene chloride

So, in $(a)$ and $(c)$ two halogen atoms are present on the same carbon atom and they are termed gem$-$dihalides.

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