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Mg + "air" overset("Ignition") rarr A+ ...

`Mg + "air" overset("Ignition") rarr ` A+ B (Insoluble )
`A overset(dil.Hcl)rarrC+Duarr`
`CuO+Doverset(Delta)rarrEuarr`
Correct statment about 'E' ......

A

It is an acidic gas

B

It I a basic gas

C

It can be prepared by heating `NH_4NO_2`

D

It can be obtaind by heating `NH_(4)Cl` with NaOH

Text Solution

Verified by Experts

`5Mg+underset("air")(ubrace(N_2+O_2))overset(Delta)rarrunderset((A))(Mg_(3)N_(2))+underset("insoluble")underset(uarr(B))(MgOdarr)underset((A))(Mg_3N_2)+underset("dil)(6HCl)rarrunderset((C))(3MgCl_2)+underset((D))(2NH_3)uarr3CuO+underset((D))(2NH_3)rarr3Cu+underset((E))(N_2)uarr+3H_2O`
E is `N_2` it can be prepared by heating `NH_(4)NO_(2)overset(Delta)rarrN_(2)+2H_(2)O`
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