In which of the following reactions is dihydr | vedclass

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(D) The reactions are as follows:$(a)$ $2NaBH_4 + I_2 \rightarrow B_2H_6 + 2NaI + H_2 \uparrow$$(b)$ $B_2H_6 + 6H_2O \rightarrow 2B(OH)_3 + 6H_2 \upar

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Burning of diborane in oxygen

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(D) The reactions are as follows:$(a)$ $2NaBH_4 + I_2 \rightarrow B_2H_6 + 2NaI + H_2 \uparrow$$(b)$ $B_2H_6 + 6H_2O \rightarrow 2B(OH)_3 + 6H_2 \uparrow$$(c)$ $3B_2H_6 + 6NH_3$ $\rightarrow 3[BH_2(NH_3)_2]^+[BH_4]^-$ $\xrightarrow{\Delta} 2B_3N_3H_6 + 12H_2 \uparrow$$(d)$ $B_2H_6 + 3O_2 \rightarrow B_2O_3 + 3H_2O$In reaction $(d)$,water is formed instead of dihydrogen gas. Therefore,dihydrogen is not evolved in the burning of diborane in oxygen.

In which of the following reactions is dihydrogen not evolved?

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