BITSAT2021Chemistrys Block ElementsActual
Two elements A and B have similar chemical properties. They don't form solid hydrogencarbonates, but react with nitrogen to form nitrides. A and B, respectively, are :
Options
- ANa and Rb
- BNa and Ca
- CCs and Ba
- DLi and Mg
Correct answer
D. Li and Mg
Step-by-step solution
Li and Mg do not form solid bicarbonate, but react with N ₂ to give nitrides. array l 6 Li + N ₂ 2 Li ₃ ~N 3 Mg + N ₂ Mg ₃ ~N ₂ array