On heating a mixture of common salt and $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ in equal amount al

Question

On heating a mixture of common salt and $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ in equal amount along with concentrated $\mathrm{H}_2 \mathrm{SO}_4$ in a test tube, a gas is evolved. Formula of the gas evolved and oxidation state of the central metal atom in the gas respectively are:

Professor PC Thomas Classes · Answer

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