In the reaction 2X + B_2H_6 rightarrow [BH_2( | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Small amines such as $NH_3$,$CH_3NH_2$,and $(CH_3)_2NH$ undergo unsymmetrical cleavage of diborane to form ionic products of the type $[BH_2(X)_2]

Vedclass · Accepted Answer

$A, B, C$

Vedclass · Answer

(A) Small amines such as $NH_3$,$CH_3NH_2$,and $(CH_3)_2NH$ undergo unsymmetrical cleavage of diborane to form ionic products of the type $[BH_2(X)_2]^+ [BH_4]^-$.The reaction is: $B_2H_6 + 2X \rightarrow [BH_2(X)_2]^+ [BH_4]^-$.Large amines,such as $(CH_3)_3N$,undergo symmetrical cleavage of diborane to form borane-amine adducts: $B_2H_6 + 2N(CH_3)_3 \rightarrow 2H_3B \leftarrow N(CH_3)_3$.Therefore,$X$ can be $NH_3$,$CH_3NH_2$,or $(CH_3)_2NH$.

In the reaction $2X + B_2H_6 \rightarrow [BH_2(X)_2]^+ [BH_4]^-$,the amine$(s)$ $X$ is(are):

Similar Questions

Which of the following is an industrial fuel?

The colour of hydrogen is

Very pure hydrogen $(99.9 \%)$ can be made by which of the following processes?

Heavy water is:

Dihydrogen can be prepared by which of the following reactions?
$(I)$ Reaction of granulated $Zn$ with dil. $HCl$
$(II)$ Reaction of $Zn$ with aq. $NaOH$
$(III)$ By heating calcium hydrogen carbonate

Vedclass Test Series

Exam Paper Generator

Online Exam Module