Arrange the following aqueous solutions in the order of their increasing boiling points: (i) $10^{-4}\,\mathrm{M}\,\mathrm{NaCl}$ (ii) $10^{-3}\,\mathrm{M}$ Urea (iii) $10^{-3}\,\mathrm{M}\,\mathrm{MgCl_{2}}$ (iv) $10^{-3}\,\mathrm{M}\,\mathrm{NaCl}$
- A(i) < (ii) < (iv) < (iii)
- B(ii) < (i) = (iii) < (iv)
- C(i) < (ii) < (iii) < (iv)
- D(iv) < (iii) < (i) = (ii)
✓ Correct answer: A
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