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Which observation(s) reflect(s) colligative properties?

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Which observation(s) reflect(s) colligative properties?

(i) A 0.5 m NaBr solution has a higher vapour pressure than a 0.5 m BaCl2 solution at the same temperature

(ii) Pure water freezes at the higher temperature than pure methanol

(iii) a 0.1 m NaOH solution freezes at a lower temperature than pure water

Choose the correct answer from the codes given below

(a) (i), (ii) and (iii)

(b) (i) and (ii)

(c) (ii) and (iii)

(d) (i) and (iii)

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(d) (i) and (iii)

Explanation:

Colligative properties depends upon the no. of particles. Since methanol is non electrolyte hence cannot be considered.

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