1.

According to the selection rules, the decreasing order of preference is __________

A. –NH2 > -C6H5 > -CH(CH3)2 > -H
B. –CH(CH3)2 > -C6H5 > -H> -NH2
C. –NH2 > -CH(CH3)2 > -C6H5 > -H
D. -C6H5 > -CH(CH3)2 >–NH2 > -H
Answer» B. –CH(CH3)2 > -C6H5 > -H> -NH2


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