Question

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

Column I		Column II
(A)	$CH_3CHCl_2$	(i)	Vinyl halide
(B)	$CH_2ClCH_2Cl$	(ii)	Alkylidene halide
(C)	$CHCl=CH_2$	(iii)	Alkylene dihalide
(D)	$ClCH_2 - CH=CH_2$	(iv)	Allyl halide

• A. $(A) \rightarrow (i)$, $(B) \rightarrow (ii)$, $(C) \rightarrow (iv)$, $(D) \rightarrow (iii)$
• B. $(A) \rightarrow (ii)$, $(B) \rightarrow (iii)$, $(C) \rightarrow (i)$, $(D) \rightarrow (iv)$
• C. $(A) \rightarrow (iii)$, $(B) \rightarrow (iv)$, $(C) \rightarrow (ii)$, $(D) \rightarrow (i)$
• D. $(A) \rightarrow (iv)$, $(B) \rightarrow (i)$, $(C) \rightarrow (iii)$, $(D) \rightarrow (ii)$

Answer 1

Answer: (B)

The common name for the structure $CH _{3} CHCl _{2}$ is alkylidene halide. Common name for $CH _{2} ClCH _{2} Cl$ is Alkylene dihalide.
The dihaloalkanes having same type of halogen atoms are alkylidene ore alkylene dihalides.
The common name for $CHCl = CH _{2}$ is Vinyl halide. Conmon name for $ClCH _{2}-$ $CH = CH _{2}$ is Allyl halide.