Question
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 :
BITSAT
Chemistry
s Block Elements
2021
BITSAT 2021
BITSAT Chemistry Question (2021) — Solution
Options
- A. Na and Rb
- B. Na and Ca
- C. Cs and Ba
- D. Li and Mg
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
Related: Chemistry — s Block Elements · All PYQ Banks