Which of the following statement(s) is(are) c | vedclass

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(D) The correct answer is $D$. This is the Chromyl chloride test.$4NaCl + K_2Cr_2O_7 + 3H_2SO_4 \xrightarrow{\Delta} K_2SO_4 + 2Na_2SO_4 + 2CrO_2Cl_2

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$D$. All of the above

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(D) The correct answer is $D$. This is the Chromyl chloride test.$4NaCl + K_2Cr_2O_7 + 3H_2SO_4 \xrightarrow{\Delta} K_2SO_4 + 2Na_2SO_4 + 2CrO_2Cl_2 + 3H_2O$In this reaction,$CrO_2Cl_2$ (Chromyl chloride) is formed,which appears as deep red vapours.When these vapours are passed into $NaOH$ solution,they form a yellow solution of sodium chromate:$CrO_2Cl_2 + 4NaOH 	o Na_2CrO_4 + 2NaCl + 2H_2O$Since all statements $A$,$B$,and $C$ are correct,the correct option is $D$.

Which of the following statement$(s)$ is(are) correct when a mixture of $NaCl$ and $K_2Cr_2O_7$ is gently warmed with conc. $H_2SO_4$?

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