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  4. When a mixture of NaCl and KCl is heated with conc. H2SO4 and K2Cr2O7. The red gas obtained is

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Q. When a mixture of $NaCl$ and $KCl$ is heated with conc. $H_2SO_4$ and $K_2Cr_2O_7$. The red gas obtained is

The p-Block Elements - Part2

Solution:

$4NaCl + K_2Cr_2O_7 + 6H_2SO_4 \rightarrow 4NaHSO_4 + 2KHSO_4 + 3H_2O + \underset{\text{Chromyl chloride gas}}{2CrO_2Cl_2}$