Magnesium powder burns in air to give :

  • Option 1)

    Mg(NO_{3})_{2}\; and\; Mg_{3}N_{2}          

  • Option 2)

    MgO \; and\; Mg_{3}N_{2}

  • Option 3)

    MgO\; only

  • Option 4)

    MgO\; and \; Mg(NO_{3})2

Answers (1)

 

Reactivity of alkaline earth metals with O2 -

Increases down the group

- wherein

Due to increase in elecropositive character

 

 

Mg+air(O_{2}/N_{2})\overset{A}{\rightarrow} MgO+Mg_{3}N_{2}


Option 1)

Mg(NO_{3})_{2}\; and\; Mg_{3}N_{2}          

Option 2)

MgO \; and\; Mg_{3}N_{2}

Option 3)

MgO\; only

Option 4)

MgO\; and \; Mg(NO_{3})2

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