Question

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

• A. $120^{∘}$ and $109^{∘}28^{′}$
• B. $90^{∘}$ and $109.5^{∘}$
• C. $109.5^{∘}$ and $90^{∘}$
• D. $109.5^{∘}$ and $120^{∘}$

Answer 1

Answer: (A)

It is an alkene, (i.e. contains double bond between carbon atoms) so the bond angle is $120^{∘}$ while tetrachloro methane is an alkane, i.e. contains only single bonds, so the bond angle is $109^{∘}28^{′}$.