In diborane, the two $H - B - H$ angles are nearly
$60^°$, $120^°$
$95^°$, $120^°$
$95^°$, $150^°$
$120^°$, $180^°$
The green colour produced in the borax bead test of a chromium$(III)$ salt is due to formation of______:
$Be ( OH )_2$ react with $Sr ( OH )_2$ to yield an ionic salt. Choose the incorrect option related to this reaction from the following:
The compound($s$) which react($s$) with $NH _3$ to give boron nitride ($BN$) is(are)
$(A)$ $B$ $(B)$ $B _2 H _6$ $(C)$ $B _2 O _3$ $(D)$ $HBF _4$
$AlCl_3$ on hydrolysis gives:
Mention isotops of boron.