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What is the correct observation when Br2...

What is the correct observation when `Br_2` is treated with NaF, NaCl andNal taken in three test-tubes labelled as A, Band C.

A

`F_2` is liberated in A and `Cl_2` in B

B

Only `I_2` is liberated in C

C

Only `Cl_2` is liberated in B

D

Only `F_2` is liberated in A

Text Solution

Verified by Experts

The correct Answer is:
B
More reactive halogen can displace less reactive halogen from its salt solution. `F_2` can displace `Cl_2, Br_2 , I_2` from their salt solutions while `Cl_2` can displace `Br_2` and `I_2` from NaBr and NaI.
`2NaI + Br_2 to 2NaBr + I_2`
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