Alkyl Halides - Result Question 36
36. The reaction conditions leading to the best yield of $C_2H_5Cl$ are-
$(1986,1 M)$
(a) $C _2 H _6$ (excess) $+Cl _2 \xrightarrow{\text { UV light }}$
(b) $C _2 H _6+Cl _2$ (excess) $\xrightarrow[\text { room temp }]{\text { dark }}$
(c) $C _2 H _6+Cl _2$ (excess) $\xrightarrow{\text { UV light }}$
(d) $C _2 H _6+Cl _2 \xrightarrow{\text { UV light }}$
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Answer:
Correct Answer: 36. (a)
Solution:
During chlorination of alkane, if excess of alkane is treated with $Cl_2(g)$ in presence of light or heat, chance of mono-chlorination predominates.
$ C _2 H _6 \text { (excess) }+Cl _2 \xrightarrow{\text { UV-light }} CH _3 CH _2 Cl+HCl $
BETA
