Question

How many isomeric vicinal-dihalides are possible for the compound having molecular formula $C_3H_6C_{12}$ ?

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

Answer: (A)

$1$

Answer 2

In vicinal-dihalides, the two $?Cl$ atoms are present at adjacent positions. In case of $C _{3} H _{6} Cl _{2}$ only one such structure is possible. Hence, only one vicinal-dihalide is possible for $C _{3} H _{6} Cl _{2}$
$CH_{3} ? \underset{\overset{|}{Cl}} {C}{H}?\underset{\overset{|}{Cl}}{C}{H_{2}}$

1, 2-dichloropropane