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# The alkaline earth metal nitrate that does not crystallise with water molecules, is :

Question:

The alkaline earth metal nitrate that does not crystallise with water molecules, is :

1. $\mathrm{Sr}\left(\mathrm{NO}_{3}\right)_{2}$

2. $\mathrm{Mg}\left(\mathrm{NO}_{3}\right)_{2}$

3. $\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}$

4. $\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}$

Correct Option: , 4

Solution: