Which of the following sets contains only properties that lithium shares with magnesium but not with sodium?

1. A(i) forms a nitride with $\mathrm{N}{}_2$ on heating; (ii) carbonate decomposes to the oxide on heating; (iv) forms a stable peroxide on burning in air
2. B(ii) carbonate decomposes to the oxide on heating; (iii) hydrogencarbonate is not known in the solid state; (iv) forms a stable peroxide on burning in air
3. C(i) forms a nitride with $\mathrm{N}{}_2$ on heating; (ii) carbonate decomposes to the oxide on heating; (iii) hydrogencarbonate is not known in the solid state
4. D(i) forms a nitride with $\mathrm{N}{}_2$ on heating; (iii) hydrogencarbonate is not known in the solid state; (iv) forms a stable peroxide on burning in air