In the chromyl chloride test,the reagent used | vedclass

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(C) The chromyl chloride test is a qualitative test used to detect the presence of chloride ions $(Cl^-)$ in a sample.In this test,the salt containing

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$K_2Cr_2O_7$

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(C) The chromyl chloride test is a qualitative test used to detect the presence of chloride ions $(Cl^-)$ in a sample.In this test,the salt containing chloride ions is heated with solid potassium dichromate $(K_2Cr_2O_7)$ and concentrated sulfuric acid $(H_2SO_4)$.The chemical reaction is:$4 NaCl + K_2Cr_2O_7 + 6 H_2SO_4 \rightarrow 2 KHSO_4 + 2 CrO_2Cl_2 + 4 NaHSO_4 + 3 H_2O$The formation of deep red vapors of chromyl chloride $(CrO_2Cl_2)$ confirms the presence of chloride ions.

In the chromyl chloride test,the reagent used is

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