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Standard XII

Chemistry

Osmotic Pressure

Consider foll...

Question

Consider following cases :
I. 2M $C H_{3}$ COOH solution in benzene at $27^{0}$ where there is dimer formation to the extent of 100%.
II. 0.5 M KCl aq. solution at $27^{0}$ , which ionises 100%.
Which is\are true statements(s) :

both are isotonic

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I is hypertonic

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II is hypertonic

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none is correct

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Solution

The correct option is B both are isotonic
$i = 0.5$
concentration $= 0.5 \times 2 M = 1 M$
(ii) $K C l ⟶ K^{+} + C l^{-}$
concentration $= 2 \times 0.5 = 1 M$
Both solution are isotonic

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Consider following cases :I. 2M CH3COOH solution in benzene at 270 where there is dimer formation to the extent of 100%.II. 0.5 M KCl aq. solution at 270, which ionises 100%. Which is\are true statements(s) :

The correct option is B both are isotonici=0.5concentration =0.5×2 M=1 M(ii) KCl⟶K++Cl−concentration =2×0.5=1 MBoth solution are isotonic

Consider following cases :
I. 2M $C H_{3}$ COOH solution in benzene at $27^{0}$ where there is dimer formation to the extent of 100%.
II. 0.5 M KCl aq. solution at $27^{0}$ , which ionises 100%.
Which is\are true statements(s) :

The correct option is B both are isotonic
$i = 0.5$
concentration $= 0.5 \times 2 M = 1 M$
(ii) $K C l ⟶ K^{+} + C l^{-}$
concentration $= 2 \times 0.5 = 1 M$
Both solution are isotonic