Q1 / 225 · JEE Main 2003 · Chemistry

Which of the following could act as apropellant for rockets?

A
Liquid oxygen $+$ liquid argon
Correct answer
B
Liquid hydrogen + liquid oxygen
C
Liquid nitrogen $+$ liquid oxygen
D
Liquid hydrogen $+$ liquid nitrogen

Solution

Liquid hydrogen and liquid oxygen are used as excellent fuel for rockets. $\mathrm{H}_2(l)$ has low mass and high enthalpy of combustion whereas oxygen is a strong supporter of combustion

Hence, the correct answer is option: 'B'.

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