In which of the following reactions is a 1^ci | vedclass

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(C) In the chlorination of isobutane $(CH_3-CH(CH_3)-CH_3)$,there are $9$ primary $(1^\circ)$ hydrogens and $1$ tertiary $(3^\circ)$ hydrogen. The rel

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$CH_3-CH(CH_3)-CH_3 \xrightarrow{Cl_2/hv} 	ext{Product}$

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(C) In the chlorination of isobutane $(CH_3-CH(CH_3)-CH_3)$,there are $9$ primary $(1^\circ)$ hydrogens and $1$ tertiary $(3^\circ)$ hydrogen. The relative reactivity of $Cl$ radicals with $1^\circ, 2^\circ, 3^\circ$ hydrogens is approximately $1 : 3.8 : 5$. Relative yield of $1^\circ$ product = $9 	imes 1 = 9$. Relative yield of $3^\circ$ product = $1 	imes 5 = 5$. Since $9 > 5$,the $1^\circ$ alkyl halide ($1$-chloro-$2$-methylpropane) is the major product.

In which of the following reactions is a $1^\circ$ alkyl halide the major product?

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