p-Block Elements-I - Result Question 44
####15. In the reaction, $2 X+B _2 H _6 \longrightarrow\left[BH _2(X) _2\right]^{+}\left[BH _4\right]^{-}$ the amine(s) $X$ is/are
(2009)
(a) $NH _3$
(b) $CH _3 NH _2$
(c) $\left(CH _3\right) _2 NH$
(d) $\left(CH _3\right) _3 N$
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Answer:
Correct Answer: 15. (a)
Solution:
- Diborane $\left(B _2 H _6\right)$ undergoes unsymmetric cleavage with $NH _3$, primary and secondary amine while tertiary amine brings about symmetrical cleavage of $B _2 H _6$ as :
