A living cell contains a solution which is isotonic with $0.3$ (M) sugar solution. What osmotic pressure developed when the cell is placed in $0.1 (M) K C l$ solution at body temperature:

5.08 a t m

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2.54 a t m

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4.92 a t m

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2.46 a t m

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Solution

The correct option is C $2.46 a t m$
Osmotic pressure, $π = (i_{1} C_{1} - i_{2} C_{2}) R T$
$T_{1} = (1 \times 0.3 - 2 \times 0.1) 0.0821 \times 300$
$2.463$ atm
D is the correct answer.

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0.3 M

0.1 M KCl

B a C l_{2}

A plant cell placed in a certain solution got plasmolysed. What was the kind of solution?

(a) Isotonic sugar solution (b) Hypotonic salt solution

	Column I		Column II
$(i)$	Saturated solution	$(a)$	Solution having the same osmotic pressure at a given temperature as that of the given solution.
$(i i)$	Binary solution	$(b)$	A solution whose osmotic pressure is less than that of another.
$(i i i)$	Isotonic solution	$(c)$	Solution with two components
$(i v)$	Hypotonic solution	$(d)$	A solution which contains the maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature.
$(v)$	Solid Solution	$(e)$	A solution whose osmotic pressure is more than another.
$(v i)$	Hypertonic Solution	$(f)$	A solution in the solid phase

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