A black compound of manganese reacts with a halogen acid to give greenish yellow gas . When excess of this gas reacts with `NH_(3)` an unstable trihal
A black compound of manganese reacts with a halogen acid to give greenish yellow gas . When excess of this gas reacts with `NH_(3)` an unstable trihalide is formed. In this process, the oxidation state of nitrogen changes from
A. `-3 " to " +3`
B. `-3` to 0
C. `-3 " to " +5`
D. 0 to `-3`
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Correct Answer - A
`MnO_(2)+4HCl to MnCl_(2)+Cl_(2)+2H_(2)O`
`3Cl_(2)+overset(-3)(NH_(3)) to overset(+3)(NCl_(3))+3HCl`
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