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On heating compound 'A ' gives a gas 'B'...

On heating compound 'A ' gives a gas 'B' which is a constituent of air. This gas when treated with 3 mol of hydrogen `(H_(2))` in the presence of a catalyst gives another gas 'C' which is basic in nature. Gas 'C', on further oxidation Jn moist condition gives a compod 'D' and also give necessary equations of the steps involved .

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`A to NH_(4)NO_(2) , B to N_(2) , C to NH_(3) , D to HNO_(3)`
(i) `NH_(4) NO_(2) to N_(2)+ 2H_(2)O`
(ii) `N_(2) + 3H_(2) to 2NH_(3)`
(iii) `4NH_(3) + 5O_(2) to 4NO + 6H_(2)O , 2NO + O_(2) to 2NO_(2)` , `3NO_(2) to H_(2)O to 2HNO_(3) + NO`
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