Question

The halide that is not hydrolysed is -

• A. $SiC{l}_4$
• B. $Si{F}_4$
• C. $CC{l}_4$
• D. $PbC{l}_4$

Answer 1

Answer: (C)

$CC{l}_4$

Silicon, lead and carbon, all are the members of the 14th group. But Silicon and lead tetrachloride reacts with water while carbon tetrachloride does not.
This is due to the fact that the carbon does not have d - orbitals to accept lone pair of electron from water while silicon and lead have vacant d - orbitals to accept lone pair of electron from water.