Which of the following statement are co...

Which of the following statement are correct when a mixture of `NaCl` and `K_(2)Cr_(2)O_(7)` is gently warmed with conc.`H_(2)SO_(4)`?

A

1, 2, 4

B

1, 2, 3

C

2, 3, 4

D

all are correct

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The correct Answer is:

A

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