The yellow precipitate formed during the chro | vedclass

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Question

(B) The chromyl chloride test is used to detect the presence of chloride ions. When a chloride salt is heated with potassium dichromate $(K_2Cr_2O_7)$

Vedclass · Accepted Answer

lead chromate

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(B) The chromyl chloride test is used to detect the presence of chloride ions. When a chloride salt is heated with potassium dichromate $(K_2Cr_2O_7)$ and concentrated sulfuric acid $(H_2SO_4)$,red vapors of chromyl chloride $(CrO_2Cl_2)$ are evolved. When these vapors are passed into a solution of sodium hydroxide $(NaOH)$,a yellow solution of sodium chromate $(Na_2CrO_4)$ is formed. Upon adding lead acetate $(CH_3COO)_2Pb$ to this yellow solution,a yellow precipitate of lead chromate $(PbCrO_4)$ is obtained.

The yellow precipitate formed during the chromyl chloride test is chemically

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