JEE Main 2026 — Apr 4, Shift 1 — Chemistry solution

JEE Main2026Apr 4, Shift 1Chemistry

Match the List-I with List-II

List_I (Name of reaction)	List-II (Reagent or catalyst used)
A. Finkelstein reaction	I. $Sb F_{3}$
B. Swarts reaction	II. Na, dry ether
C. Sandmeyer's reaction	III. NaI
D. Fitting reaction	IV. $C u_{2} C l_{2}$

Choose the correct answer from the options given below :

Solution

Standard name reactions and their reagents:

$∙$ Finkelstein: alkyl chloride/bromide $+$ NaI (acetone) $\to$ alkyl iodide. Pair A-III.

$∙$ Swarts: alkyl halide $+$ $Sb F_{3}$ (or $H g_{2} F_{2}, AgF, Co F_{2}$ ) $\to$ alkyl fluoride. Pair B-I.

$∙$ Sandmeyer: aryl diazonium salt $+$ $C u_{2} C l_{2} /C u_{2} B r_{2}$ $\to$ aryl chloride/bromide. Pair C-IV.

$∙$ Fittig: aryl halide $+$ Na in dry ether $\to$ biaryl. Pair D-II.

Matching: A-III, B-I, C-IV, D-II.

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