Which of the following statement (s) is (are) correct when a mixture o – InterviewSolution

1.	Which of the following statement (s) is (are) correct when a mixture of NaCl and K_(2)Cr_(2)O_(7) is gently warmed with conc. H_(2)SO_(4)
Answer» A deep red vapour is evolved The vapours when PASSED into NaOH solution gives a yellow solution of `Na_(2)CrO_(4)` Chlorinegas is evolved Chromyl chloride is formed Solution :The reactions are `4NaCl+K_(2)Cr_(7)O_(7)=6H_(2)SO_(4)to2CrO_(2)Cl_(2)+4Naunderset(("Red vapours"))(HSO_(4)+2KH)SO_(4)+3H_(2)O,underset("Chromyl chloride")(CrO_(2)Cl_(2))+4NaOH to underset("yellow solution")(Na_(2)CrO_(4))+2NaCl+2H_(2)O`

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