Amnaalsaadi2003idn
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Answer:

B. KBr  + F2

Explanation:

In displacement reactions (reactions in which an element replaces another element in a compound) like these, reactive element displaces the less reactive element.

A. NaBr  +  I2  

This reaction will not occur because Iodine is not able to displace bromine from the compound.

B. KBr  + F2

This reaction will occur because flourine is more reactive and hence is able to displace bromine from the reaction.

C. LiF  +  Cl2

This reaction will not occur because chlorine is not able to displace flourine from the compound.

D. NaCl + I2

This reaction will not occur because Iodine is not able to displace Chlorine from the compound.

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