1.

What is Z in the following reactions ? BCl_3 + H_2 underset(450^@ C)overset(Cu-Al)to X + HClX overset("methylation")to Z

Answer»

`(CH_3)BH_2`
`(CH_3)_4 B_2 H_2`
`(CH_3)_3 B_2 H_3`
`(CH_3)_6 B_2`

ANSWER :B


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