An orange solid A on heatinggave qa greenresidue B, a colourless gas C , and water vapour .The drygas C onpassingoverbeated Mg gave awhite solid D.D on reaction with water gave a gas E formeddense white furmjes with HCI identify A to E and give the reactioninvolved

An orange solid A on heatinggave qa greenresidue B, a colourless gas C

1.	An orange solid A on heatinggave qa greenresidue B, a colourless gas C , and water vapour .The drygas C onpassingoverbeated Mg gave awhite solid D.D on reaction with water gave a gas E formeddense white furmjes with HCI identify A to E and give the reactioninvolved
Answer» SOLUTION :The gas E must be AMMONIA so D is maganessium nitride and gas C is mirogen, It is expectedthat the orange solid A is ammonium dishromade .The greenresidue B is `Cr_(2)O_(3) ` `underset((A))((NH_(4))_(2)Cr_(2)O_(7))rarrunderset((B))(Cr_(2)O_(3))+underset((C))(N_(2))+4H_(2)O` `N_(2) +3Mg rarr underset((D))(Mg_(3)N_(2))` `Mg_(3)N_(2)+6H_(2)O rarr 3Mg(OH)_(2) +underset((E))(2NH_(3))` `NH_(3) +HCI rarr NH_(4)CI` (Dense WHITE fumes)