When KI is added to an acidified solutio...

When KI is added to an acidified solution of sodium nitrite

A

No gas is liberated and `I_(2)` is set free

B

`N_(2)` gas is liberated and HI is produced

C

`N_(2)O` gas is liberated and `I_(2)` is set free

D

`N_(2)` gas is liberated and HOI is produced

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