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Which compound in each of the following pairs will react faster in S_(N)2reaction with- OHand why? (i) CH_(3)Br " or " CH_(3)I "" (ii) (CH_(3))_(3)C Cl " or " CH_(3)Cl |
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Answer» Solution :(i) `CH_(3)Br " and " CH_(3)I `are both PRIMARY halogen compounds. The REACTIVITY will depend on the SIZE of the halogen. Iodine is a better leaving group because of LARGE size. Therefore `CH_(3)I`will REACT faster than `CH_(3)Br` . (ii) Out of `(CH_(3))_(3) C Cl " and " CH_(3)Cl `, the latter will react faster with ` - OH" in " S_(N) 2` reaction . This is because `1^(@) ` halides react faster than `3^(@) ` halides in `S_(N)2` reaction . |
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