A Orange coloured solid substance release colourless gas by heating and it creates a green substance which is reduced to a metal by aluminium powder. what is the name of those orange and green substance? [explain]
Options:-
(A) (NH4)2Cr2O7 and Cr2O3
(B) Na2Cr2O7 and Cr2O3
(C) K2Cr2O7 and CrO3
(D) (NH4)2CrO4 and CrO3
Answers
Answered by
2
Answer:
(NH4)2Cr2O7 --> N2 + Cr2O3 + H2ON2 is the colourless gas. Cr2O3 is the green residue. Now N2 gas reacts with magnesium to form a nitride, magnesium nitride. N2 + 3Mg ---> Mg3N2
Answered by
1
Answer:
A) option is the right answer
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