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Potanium dischromate reacts with concrnt...

Potanium dischromate reacts with concrntrated hydrochloric acid to yield

A

`CIO_(2)`

B

`KCIO_(2)`

C

`CI_(2)`

D

`CrO_(2)Cl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
3
Oxidizing agent potassium dichromate oxidizes hydrochloric acid to chlorine:
`{:(K_(2)Cr_(2)O_(7)+8HCl rarr 2KCl +2CrCl_(3)+4H_(2)O+3[O]),(6HCl+3[O] rarr 3H_(2)O+3Cl_(2)),(bar(K_(2)Cr_(2)O_(7)+14 HCl rarr 2KCl+2CrCl_(3)+7H_(2)O+3Cl_(2))):}`
Ozone also oxidizes `HCl` and `Cl_(2)`
`O_(3)+2HCl rarr O_(2)+H_(2)O+Cl_(2)`
Chlorine gas from any of these sources can be dried by passing it through concentrated sulphuric acid and collected by downwards delievery.
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