In the replacement reaction()/(/)C I+M F→()/(/)C F+M IThe reaction will be most favourable if M happens to be

Question

Accepted Answer

Correct answer: C. (c) Tertiary halide shows S_N1 mechanism i.e., ionic mechanism. In the given reaction negative ion will attack on carbocation. Thus greater the tendency of ionisation (greater ionic character in M−F bond) more favourable will be reaction. The most ionic bond is Rb‐F in the given examples thus most favourable reaction will be with R b−F.

$In the replacement reaction()/(/)C I+M F\to()/(/)C F+M IThe reaction will be most favourable if M happens to be$

Solution

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