JEE Main Chemistry question

Which one of the following reactions does not occur? [BITSAT 2008, AMU 2008, EAMCET 2008]

(A)
(B)Correct
(C)
(D)Cl_2+2Br^-\rightarrow2Cl^-+Br_2

Answer: (B)

Solution

A halogen can only displace a less reactive (weaker-oxidising) halogen from its salt. Since is the strongest oxidiser, it readily displaces (A, occurs); the reverse,

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Question ID VK-145792