Li does not resemble with other alkali metals in following properti...

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Li does not resemble with other alkali metals in following properties :
(a) \( \mathrm{Li}_{2} \mathrm{CO}_{3} \) decomposes into oxides while other alkali metal carbonates are thermally stable
(b) \( \mathrm{LiCl} \) is predominantly covalent
(c) \( \mathrm{Li}_{3} \mathrm{~N} \) is formed, when Li metal is heated with \( \mathrm{N}_{2} \) gas
\( \mathrm{P} \)
(d) all are correct
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