A \( 1 \% \) (mass/vol) \( \mathrm{KCl} \) solution is ionised to the extent of \( 80 \% \). The...

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A \( 1 \% \) (mass/vol) \( \mathrm{KCl} \) solution is ionised to the extent of \( 80 \% \). The osmotic pressure at \( 27^{\circ} \mathrm{C} \) of the solution will be:
(a) \( 6.95 \mathrm{~atm} \)
(b) \( 5.94 \mathrm{~atm} \)
(c) \( 2.71 \mathrm{~atm} \)
(d) \( 3.30 \mathrm{~atm} \)
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