Which of the following is a double base propellant?

Options

A. a) Methyl nitrate and nitromethane
B. b) Nitroglycerine and nitrocellulose
C. c) Kerosine and alcohol
D. d) Acrylic rubber and liquid `N_2O_4`

Answer

B

Explanation

The molecules which contain both oxidiser and the fuel elements in the same molecule are called double base propellants, eg, nitroglycerine and nitrocellulose. In this nitrocellulose gels in nitroglycerine and sets to a solid mass.