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B
2-chloro-2-methylbutane
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C
2-chloro-3-methylbutane
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D
1-chloro-3-methylbutane
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Solution
The correct option is C 2-chloro-3-methylbutane The major product of this reaction is decided by kinetic factor.
i.e., rate of chlorination ∝ k[H]
k ⟹10x203.8x305x
so,
rate of attack on 10C1=x[6]
rate of attack on 10C4=x[3]
rate of attack on 20C3=3.8x[2]=7.6x
rate of attack on 30C2=5x[1]
hence , major product will be the one in which Cl is substituted at 20C
i.e.,