$BCl_3$ does not exist as dimer but $BH_3$ exist as dimer $(B_2H_6)$ becuase
Chlorine is more electronegative than hydrogen
There is $p\pi -p \pi $ back bonding in $BCl_3$ but does not contain such multiple bonding
Large sized chlorine atoms do not fit in between the small boron atoms whereas small sized hydrogenatoms get fitted between boron atoms
none of these
Given below are two statements :
Statement $I:$ Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green.
Statement $II:$ The green colour observed is due to the formation of copper(I) metaborate.
In the light of the above statements, choose the most appropriate answer from the options given below :
The structure of diborane contains:
Assertion : Both $Be$ and $Al$ can form complexes such as $BeF_4^{2-}$ and $AlF_6^{3-}$ respectively, $BeF_6^{3-}$ is not formed.
Reason : In case of $Be$, no vacant $d-$ orbitals are present in its outermost shell.
Which of the following is not true about potash alum
The incorrect statement regarding above reactions is
$\mathop {Al}\limits_{Metal} \xrightarrow{{HCl(aq.)}}'X' + Gas\,'P'$
$\mathop {Al}\limits_{metal} \xrightarrow[{ + {H_2}O}]{{NaOH\,(aq.)}}'Y' + Gas\,'Q'$