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Solution of a salt in dilute H2 SO4 prod...

Solution of a salt in dilute `H_2 SO_4` produces deep blue colour with starch iodine solution. The salt contains

A

`Br^(-)`

B

`I^(-)`

C

`NO_(3)^(-)`

D

`NO_(2)`

Text Solution

Verified by Experts

Nitrite ion liberates `I_(2)` from potasium iodide turning starch blue.
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