The orange solid ono heating gives a colourless gas and green solid which can be reduced to the metal by aluminium powder. The orange and the green solies are, respectively,A. `(NH_(4))_(2)Cr_(2)O_(7)andCr_(2)O_(3)`B. `Na_(2)Cr_(2)O_(7)andCrO_(3)`C. `K_(4)Cr_(2)O_(7)andCrO_(3)`D. `(NH_(4))_(2)CrO_(4)andCrO_(3)`

The orange solid ono heating gives a colourless gas and green solid wh

1.	The orange solid ono heating gives a colourless gas and green solid which can be reduced to the metal by aluminium powder. The orange and the green solies are, respectively,A. `(NH_(4))_(2)Cr_(2)O_(7)andCr_(2)O_(3)`B. `Na_(2)Cr_(2)O_(7)andCrO_(3)`C. `K_(4)Cr_(2)O_(7)andCrO_(3)`D. `(NH_(4))_(2)CrO_(4)andCrO_(3)`
Answer» Correct Answer - A `underset("Orange solid")((NH_(4))_(2)Cr_(2)O_(7))overset(Delta)tounderset("Colouress gas")(N_(2))+underset("Green solid")(Cr_(2)O_(3))+4H_(2)O` `Cr_(2)O_(3)+2Aloverset(Delta)to2Cr+Al_(2)O_(3)`

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