Question

The Cl -C - Cl angle in 1, 1, 2, 2- tetrachloroethene and tetrachloromethane respectively will be about

(a) 120° and 109.5° 

(b) 90° and 109.5°

(c) 109.5° and 90° 

(d) 109.5° and 120°

Answer 1

The correct option is: (a) 120° and 109.5° 

Explanation:

Tetrachloroethene being an alkene has sp²- hybridized C-atoms and hence the angle Cl - C - Cl is 120° while in tetrachloromethane, carbon is sp³ hybridized, therefore the angle Cl -C-Cl is 109°28'.