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A metal chloride original solution (i.e....

A metal chloride original solution `(i.e. O.S)` on mixing with `K_(2)CrO_(4)` solution gives a yellow precipitate soluble in aqueous sodium hydroxide. The metal may be `:`

A

mercury

B

iron

C

silver

D

lead

Text Solution

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The correct Answer is:
4
`Pb^(2+)+CrO_(4)^(2-)rarrPbCrO_(4)darr("yellow"),PbCrO_(4)darr+4OH^(-)rarr[Pb(OH)_(4)]^(2-)+CrO_(4)^(2-)`
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RESONANCE-QUALITATIVE ANALYSIS-INORGANIC CHMISTRY(Qualitative analysis)
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