question_answer

In the replacement reaction                                       The reaction will be most favorable if M happens to be

A)  Na        

B)  K                           

C)  Rb                         

D)  Li

Correct Answer: C

Solution :

For the reaction, The reaction will be faster with \[Rb\] because lattice energy of \[RbF\]is less than \[LiF,NaF,KF\].