Which of the following could act as a propellant for rockets?
A.
Liquid oxygen + liquid argon
B.
Liquid hydrogen + liquid oxygen
C.
Liquid nitrogen + liquid oxygen
D.
Liquid hydrogen + liquid nitrogen
Answer :
Liquid hydrogen + liquid oxygen
Solution :
Liquid hydrogen and liquid oxygen are used as excellent fuel for rockets. $${H_2}\left( \ell \right)$$ has low mass and high enthalpy of combustion whereas oxygen is a strong supporter of combustion.
Releted MCQ Question on Organic Chemistry >> Biomolecules
Releted Question 1
The pair of compounds in which both the compounds give positive test with Tollen’s reagent is