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Which of the following could act as a propellant for rockets ?

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$Liq . O_{2} + Liq . Ar$

$Liq . H_{2} + Liq . O_{2}$

$Liq . N_{2} + Liq . O_{2}$

$Liq . H_{2} + Liq . N_{2}$

answer is A.

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Detailed Solution

$Liq . H_{2}$ because of low atomic mass and high enthalpy of combustion and $Liq . O_{2}$ is strongly supported for combustion.

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