In the replacement reaction C - I+MF C - F+MI The reaction will be most favourable if M happens to be:

JEE Main Chemistry question

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

(A)Na
(B)K
(C)RbCorrect
(D)Li

Answer: (C)

Solution

This halogen-exchange (Swarts-type) reaction proceeds best when the metal fluoride MF is highly soluble (and dissociates readily to supply reactive fluoride ion) in the reaction medium; among the alkali metal fluorides, solubility

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Question ID VK-137889