Which of the following could act as a propellant for rockets?
- ALiquid hydrogen $+$ liquid nitrogen
- BLiquid oxygen $+$ liquid argon
- CLiquid hydrogen $+$ liquid oxygen
- DLiquid nitrogen $+$ liquid oxygen
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$NaCl + AgNO_3 \longrightarrow AgCl \downarrow + NaNO_3$
$NaCl + AgNO_3 \longrightarrow AgCl \downarrow + NaNO_3$
Which one of the following statements is correct?
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