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A solid laboratory reagent (A) gives the...

A solid laboratory reagent (A) gives the following reactions.
Its solution does not give ppt. on passing `H_(2)S`.

Text Solution

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`A-BaCl_(2)`
`CrO_(2)Cl_(2)+4NaOH rarr Na_(2)CrO_(4)+2NaCl+underset("solution")underset("yellow")(2H_(2)O)`
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The solid laboratory reagent A gives the following reactions: I. It imparts green colour to the flame. II. Its solution does not give a precipitate on passing H_(2)S. III. When it is heated with solid K_(2)Cr_(2)O_(7) and concentrated H_(2)SO_(4) a red gas is evolved. When this gas is passed into aqueous solution of NaOH it turns yellow: Identify A.

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MOTION-Salt Analysis-Exercise - 4 Level-II
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