Gujarati
p-Block Elements - I
medium

$NH _3$ के साथ अभिक्रिया पर बोरॉन नाइट्राइड $(BN)$ उत्पन्न करने वाले यौगिक है (हैं)

$(A)$ $B$ $(B)$ $B _2 H _6$ $(C)$ $B _2 O _3$ $(D)$ $HBF _4$

A

$A,B$

B

$B,C$

C

$A,C$

D

$A,D$

(IIT-2022)

Solution

$(A)$ $2 B +2 NH _3 \rightarrow 2 BN +3 H _2$

Boron produced BN with ammonia but Boron is element not compound. So that this option not involve in answer.

$(B) 3$

$3 B _2 H _6+6 NH _3 \rightarrow 3\left[ BH _2\left( NH _3\right)_2\right]^{+}\left[ BH _4^{-}\right] \xrightarrow{ T =200^{\circ} C } 2 B _3 N _3 H _6+12 H _2$

$B _3 N _3 H _6 \xrightarrow{ T >200^{\circ} C }( BN )_{ z }$

$(C)$ $B _2 O _3(\ell)+2 NH _3 \xrightarrow{1200^{\circ} C } 2 BN _{( s )}+3 H _2 O _{( g )}$

$(D)$ $HBF _4+ NH _3 \rightarrow NH _4\left[ BF _4\right]$

Standard 11
Chemistry

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