JEE Main 2015 · 4 Apr · Shift 1 · Chemistry Q54

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ChemistrySingle correct+4 / -1Question 54 of 90

The synthesis of alkyl fluorides is best accomplished by :

Free radical fluorination

Sandmeyer's reaction

Finkelstein reaction

Swarts reaction

Answer and worked solution

Official answer: D

Alkyl fluorides are best made by halogen exchange with metallic fluorides (AgF, $\ce{Hg2F2}$ , $\ce{CoF2}$ , $\ce{SbF3}$ ): the Swarts reaction. Direct fluorination is explosive, and Finkelstein exchange gives iodides.

Topics:SN1 and SN2

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JEE Main 2015 · 4 Apr · Shift 1, Chemistry question 54