MCQ
What will be the formula of $'M'$ nitrate?


- A$M_2NO_3$
- B$MNO_3$
- ✓$M(NO_3)_2$
- D$M(NO_2)_2$

$\therefore {M^{ + 2}}\,NO_3^ - \Rightarrow M{\left( {N{O_3}} \right)_2}$
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What is the standard free energy change for the reaction ${H_2}(g) + 2\,C\,(s) \to {C_2}{H_2}(g)$ .....$kJ$
