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A magnesium ribbon is burned in oxygen to give a white a compund X with emission of light.If the burning of ribbon is now placed in a atmosphere of nitrogen it continues to burn and it forms Y. Identify X and Y 
Asked by amar chandniranjan | 11 Jun, 2014, 08:52: PM
answered-by-expert Expert Answer

Magnesium ribbon burns in air and forms white Magnesium oxide, MgO (X),

2 Mg(s) + O2(g) → 2 MgO(s)

X

The atmospheric nitrogen is generally inert and the burning of magnesium ribbon provides high temperature, which makes nitrogen gas to react with magnesium and form Magnesium Nitride, Mg3N2, (Y)

3 Mg(s) + N2(g) → Mg3N2(s)

Y

Therefore, X is MgO and Y is Mg3N2.

Answered by Hanisha Vyas | 12 Jun, 2014, 10:58: AM

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