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NEET Chemistry Colligative Properties MCQ Question

Type: MCQ-numerical-Medium-Class 12

Arrange the following aqueous solutions in the order of their increasing boiling points. (i) 10⁻⁴ M NaCl (ii) 10⁻⁴ M Urea (iii) 10⁻³ M MgCl₂ (iv) 10⁻² M NaCl

A

(i) < (ii) < (iv) < (iii)

B

(ii) < (i) = (iii) < (iv)

C

(ii) < (i) < (iii) < (iv)

D

(iv) < (iii) < (ii) < (i)

Correct Answer

Option C

Detailed Explanation

Boiling point elevation is proportional to the concentration of ions. Urea has no ions, while NaCl and MgCl₂ dissociate into ions.

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