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Which one of the following pairs of subs...

Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature?

A

`HCl and KMnO_4`

B

`NaCl and H_3PO_4`

C

`NaCl and MnO_2`

D

`CaCl_2 and Br_2`

Text Solution

Verified by Experts

The correct Answer is:
A
`({:(2KMnO_4+6HCl to,2KCl+2MnCl_2 + 3 H_2O +5O),(2HCl+O to , H_2O + Cl_2"]"xx5):})/ul(2KMnO_4 + 16HCl to 8H_2O + 2KCl + 2MnCl_2+ 5 Cl_2)`
`Cl_2` can not be obtained from any other pair of compounds.
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