The diazonium salt shown is treated with hypophosphorous acid (H3PO2). Which structure is the organic product?

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JEE Main levelSingle correct optionDifficulty 2 of 3nc265

The diazonium salt shown is treated with hypophosphorous acid ( $H X_{3} PO X_{2}$ ). Which structure is the organic product?

AStructure A
BStructure B
CStructure C
DStructure D

Answer: B

The salt shown is 4-methylbenzenediazonium chloride. Hypophosphorous acid reduces the diazonium group and replaces it with hydrogen (deamination), giving toluene along with nitrogen gas and phosphorous acid.

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The diazonium salt shown is treated with hypophosphorous acid (HX3​POX2​). Which structure is the organic product?

Answer: B

More questions on Diazonium, Sandmeyer and azo coupling products of drawn anilines

The diazonium salt shown is treated with hypophosphorous acid ( $H X_{3} PO X_{2}$ ). Which structure is the organic product?