Cyclic hydrocarbon molecules `'A'` has all the carbon and hydrogen in a single plane. All the carbon-carbon bonds are of same length less than `1.54 Å`, but more than `1.34 Å`. The `C-C` bond angle will be

Options

A. `120^(@)`
B. `180^@`
C. `100^(@)`
D. `109^(@) 28'`

Answer

A

Explanation

Cyclic hydrocarbon in which all the carbon atoms are present in the same plane is benzene. In this C C bond length is 1.39Å which is more than 1.34Å but less than 1.54Å. Hence bond angle is `120^@` with `sp^2` hybridization.