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,

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,
Answer» `(NH_(4))_(2)Cr_(2)O_(7)andCr_(2)O_(3)` `Na_(2)Cr_(2)O_(7)andCrO_(3)` `K_(4)Cr_(2)O_(7)andCrO_(3)` `(NH_(4))_(2)CrO_(4)andCrO_(3)` SOLUTION :`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)`