Which of the following statement (s) is/are correct when a mixture of NaCl and K_(2)Cr_(2)O_(7) si gently warmed with conc. H_(2)SO_(4)? (I)A deep red vapour is evoleved. ltbr4gt (II) The vapour when passes into NaOH solutiongives a yellow solution of Na_(2)CrO_(4). (III) Chomyl chloride is formed. Choose the coorect option.

Which of the following statement (s) is/are correct when a mixture of

1.	Which of the following statement (s) is/are correct when a mixture of NaCl and K_(2)Cr_(2)O_(7) si gently warmed with conc. H_(2)SO_(4)? (I)A deep red vapour is evoleved. ltbr4gt (II) The vapour when passes into NaOH solutiongives a yellow solution of Na_(2)CrO_(4). (III) Chomyl chloride is formed. Choose the coorect option.
Answer» I and II I, II and III I,II and IV III and Iv Solution :On WARMING the mixture of NaCl and `K_(2)Cr_(2)O_(7)` GENTLY with conc. `H_(2)SO_(4)` a deep red VAPOUR is evolved. When it is passed into NaOHsolution , gives a yellow solution of `Na_(2)CrO_(4)` and chromyl chloride.