KCl+concH2SO4+K2Cr2O7Δ→(X)NaOH−−−−−→(Y)KCl+concH2SO4+K2Cr2O7Δ→(X)NaOH−−−−−→(Y). (X) is reddish brown coloured gas soluble in forming (Y). (X) and (Y) are___________.
A
Cr2OCl2,Na2CrO3
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B
Cr2O2Cl2,Na2CrO3
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C
CrO2Cl,Na2CrO4
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D
CrO2Cl2,Na2CrO4
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Solution
The correct option is DCrO2Cl2,Na2CrO4 4KCl+3H2SO4+K2Cr2O7Δ→2CrO2Cl2yellow,chromylchloride,(X)↑+3K2SO4+3H2OCrO2Cl2+4NaOH