Boron hydrides are prepared by the action of dil. HCl on \({Mg_3B_2}\) .
All the B-H bonds in \(B_2H_6\) are not equal. The four terminal B-H bonds are shorter (B-H bond length = 1.19 \(\mathring A\)) than the two bridged B-H-B bonds (bond length - 1.33 \(\mathring A\)).
So, the correct option is (B): All the B-H bonds in $B_2H_6$ are equal.
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.
Match List I with List II
Choose the correct answer from the options given below: