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Phosphorus trichloride does not react with Grignard reagents.

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in Chemistry – Class 12 by (188k points)
Phosphorus trichloride does not react with Grignard reagents.

(a) True

(b) False

This question was posed to me in final exam.

Origin of the question is P-Block Elements in division P-Block Elements of Chemistry – Class 12

1 Answer

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Right answer is (b) False

Easiest explanation: Phosphorus trichloride reacts with Grignard reagents to form substituted phosphines. For example, PCl3 reacts with phenylmagnesium chloride to produce triphenylphosphate and magnesium chloride.

PCl3 + 3C6H5MgCl → P(C6H5)3 + 3MgCl2.

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