1.

Which of the following reactions will yield 2-propanol ? 1)CH_2=CH-CH_3+H_2O overset(H^+)to (2) CH_3CHO underset(H_3O^+)overset(CH_3MgI)to (3)HCHO underset(H_3O^+)overset(C_2H_5MgI)to (4) CH_3COCH_3 underset(H_3O^+)overset(CH_3MgI)to

Answer»

1 and 2
2 and 3
3 and 1
2 and 4

Solution :`CH_2=CH-CH_3+H_2O overset(H^+)toCH_3-CH(OH)-CH_3` (MARKOWNIKOFF addition)
`CH_3CHO underset(H_3O^+)overset(CH_3MgI)to CH_3-CH(OH)-CH_3` Reactions (1) and (2) GIVE 2-propanol


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