Alkanes

22. ​​ O/N 2016/P11/Q39

Compound Q has the formula C4H10.

Which statement about compound Q is correct?

A​​ It undergoes addition reactions with chlorine.

B​​ It has a lower boiling point than methane.

C​​ It has the same general formula as methane.

D​​ There are four C–C bonds in the molecule.

 

Answer:​​ C

Explaination

C4H10​​ is the formula of butane as it belongs to alkane family having same general formula as methane and other alkane molecules. In butane there is 3 C-C single bond. They undergo substitution reaction with Cl2​​ and Br2​​ because of  ​​​​ C-C single bond, so there is no addition reaction like alkene. Their boiling point and melting point increases as they grows longer and heavier because of strong intermolecular forces.