Question

The $Cl-C-Cl$ angle in $1,1,2,2-$tetrachloro ethene and tetrachloro methane respectively will be about :

• A. ${120}^{\circ }$ and ${109.5}^{\circ }$
• B. ${90}^{\circ }$ and ${109.5}^{\circ }$
• C. ${109.5}^{\circ }$ and ${90}^{\circ }$
• D. ${109.5}^{\circ }$ and ${120}^{\circ }$

Answer 1

Answer: (A)

${120}^{\circ }$ and ${109.5}^{\circ }$

The $Cl-C-Cl$ angle in $1,1,2,2$ tetrachloro ethene and tetrachloro methane will be about ${120}^{\circ }and{109.5}^{\circ }$ respectively.

In $1,1,2,2-$tetrachloro ethene, the $C$ atom is $s{p}^2$ hybridized which results in trigonal planar geometry.
In tetrachloro methane, the $C$ atom is $s{p}^3$ hybridized which results in tetrahedral geometry.