MCQ
Which is correctly matched
- ✓$n = 5,l = 2,m = + 2,s = - 1/2$
- B$n = 5,l = 5,m = - 2,s = + 1/2$
- C$n = 3,l = 2,m = + 2,s = 0$
- D$n = 3,l = 2,m = + 3,s = + 1/2$
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(Given : Density of solution $=1.25 \mathrm{~g} \mathrm{~mL}^{-1}$, Molar mass in $\left.\mathrm{g} \mathrm{mol}^{-1}: \mathrm{Na}-23, \mathrm{Cl}-35.5\right)$

Statement $II :$ there is no change when undergoing boiling
Statement $III :$ reverse of $I$ and $II$
Statement $IV :$ dimer formation in freezing and boiling state