1.

Mg + "air" overset("Ignition") rarrA+ B (Insoluble ) A overset(dil.Hcl)rarrC+Duarr CuO+Doverset(Delta)rarrEuarr What is not correct ?

Answer»

`Ba(N_3)2overset(Delta)RARR` Neutral gas
`NaNO_32overset(Delta)rarr` Paramagneticgas
`LiNO_(3)OVERSET(Delta)rarr` Acidic and diamganetic gases
`Ba(N_3)2overset(Delta)rarr` Coloured PARAMAGNETIC gas

Solution :`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`
a) `Ba(N_3)_(2)overset(Delta)rarr2Ba+3N_(2)uarr` neutral gas
b) `2NaNO_3overset(Delta)rarr2NaNO_(2)+O_(2)uarr` paramagnetic gas
c) `2LiNO_(3) rarrLi_(2)O+2NO_(2)+1/2O_(2)uarr` acidic , colored and paramagnetic


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