Which is a pair of geometrical isomers?

Options

A. (i) and (ii)
B. (i) and (iii)
C. (i) and (iv)
D. (iii) and (iv)

Answer

C

Explanation

Geometrical isomers are different compounds having the same molecular and structural formulas but possess different configuration. Thus (ii) and (iv) are geometrical isomers:

`CI gtH`
`Br gt CH_(3)`
Note that compounds (i) and (iii) have different molecular formulas