Which of the following is/are correct statement (s):

Options

A. The number of structural isomers for molecular formula `C_(3)H_(8)` are `2`
B. The number of structural isomers for molecular formula `C_(5)H_(12)` are `3`
C. The number of structural isomers for molecular formula `C_(6)H_(14)` are `5`
D. The number of benzene ring containing structral isomers for molecular formula `C_(6)H_(4)BrCl` are `4`

Answer

B, C

Explanation

(A)`CH_(3)-CH_(2)-CH_(3)`
(B)`CH_(3)-CH_(2)-CH_(2)-CH_(2)-CH_(3),CH_(3)-undersetunderset(CH_(3))(|)(CH)-CH_(2)-CH_(3),CH_(3)-underset(CH_(3))underset(|)oversetoverset(CH_(3))(|)( C)-CH_(3)`
(C )`CH_(3)-CH_(2)-CH_(2)-CH_(2)-CH_(2)-CH_(3),CH_(3)-undersetunderset(CH_(3)(|)(CH)-CH_(3)-CH_(2)-CH_(3)`,
`CH_(3)-CH_(2)-undersetunderset(CH_(3))(|)CH-CH_(2)-CH_(3),CH_(3)-undersetunderset(CH_(3))(|)oversetoverset(CH_(3))(|)(C)-CH_(2)-CH_(3),CH_(3)-undersetunderset(CH_(3))(|)(CH)-oversetoverset(CH_(3))(|)(CH)-CH_(3)`
(D)