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
Select the correct option:
A
Li and Mg
B
Cs and Ba
C
Na and Rb
D
Na and Ca
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
– Solid hydrogencarbonates are not formed by lithium and magnesium.
$-6 \mathrm{Li}+\mathrm{N}_2 \rightarrow 2 \mathrm{Li}_3 \mathrm{~N}$
$-3 \mathrm{Mg}+\mathrm{N}_2 \rightarrow \mathrm{Mg}_3 \mathrm{~N}_2$
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation. Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇
