Assertion (A): Mercury(II) chloride does not give the chromyl chloride test. Reason (R): HgCl2 is a covalent compound and does not furnish free Cl- ions to the reaction mixture.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is not the correct explanation of A

JEE Main levelSingle correct optionDifficulty 2 of 3qa082

Assertion (A): Mercury(II) chloride does not give the chromyl chloride test. Reason (R): $HgCl X_{2}$ is a covalent compound and does not furnish free $Cl X^{-}$ ions to the reaction mixture.

Both statements are true. Formation of

CrO X_{2} Cl X_{2}

requires free chloride ions reacting with chromic acid species in the acid medium, and

HgCl X_{2}

is largely molecular. R therefore explains A.