First slide

Chlorine - properties ,Structure and Uses

Question

On heating $NaCl + K_{2} {Cr}_{2} O_{7} + conc . H_{2} {SO}_{4}$ , the gas comes out is

Moderate

A

$O_{2}$
B

${Cl}_{2}$
C

${CrOCl}_{2}$
D

${CrO}_{2} {Cl}_{2}$

Solution

$K_{2} {Cr}_{2} O_{7} + 4 NaCl + 3 H_{2} {SO}_{4} \to 2 {CrO}_{2} {Cl}_{2} + K_{2} {SO}_{4} + 2 {Na}_{2} {SO}_{4} + 3 H_{2} O$

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