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The heating of which of the following gi...

The heating of which of the following gives pure chlorine

A

`MnO_2 + HCl`

B

Bleaching powder + HCl

C

`PtCl_4`

D

`NaCl + MnO_2 + H_2SO_4`

Text Solution

Verified by Experts

The correct Answer is:
C
Pure chlorine is obtained by heating dry `PtCl_4` or `AuCl_3`
`PtCl_4 overset(374^@C)toCl_2+PtCl_2overset(582^@)toPt+2Cl_2`
`2AuCl_3 overset(175^@C)to 2Cl_2 + 2AuCl overset(185^@C)to2Au + Cl_2`
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