Select the hybridisation which has non-planar geometry when all are bond pairs,but planar when there are $2$ lone pairs on the central atom:

What are the formal charge on each oxygen atom and the $P-O$ bond order in the $PO_4^{3-}$ ion,respectively?

In the reaction $AlCl_3 + Cl^- \rightarrow [AlCl_4]^-$,$AlCl_3$ acts as a.......

State the bond angle and bond length in ethene. What are the bond angles in $PCl_5$?

$BF_3$ is used as a catalyst in many industrial processes because of its:

Identify the correct orders against the property mentioned:
$(A)$ $H_2O > NH_3 > CHCl_3$ - dipole moment
$(B)$ $XeF_4 > XeO_3 > XeF_2$ - number of lone pairs on central atom
$(C)$ $O-H > C-H > N-O$ - bond length
$(D)$ $N_2 > O_2 > H_2$ - bond enthalpy
Choose the correct answer from the options given below: