Solution $A$ contains $7 g / L M g C l_{2}$ and solution $b$ contains $7 g / L$ of $N a C l$ . At room temperature, the osmotic pressure of:

solution

A

is greater than

B

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both have same osmotic pressure

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solution

B

is greater than

A

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cannot be determined

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Solution

The correct option is C solution $A$ is greater than $B$
$M g C l_{2} ⇌ M g^{2 +} + 2 C l^{-} i . e .1 + 2 = 3$ particles
$N a C l ⇋ N a^{+} + C l^{-} i . e .1 + 1 = 2$ particles
Osmotic pressure is a colligative property which depends upon the number of particles. The number of particles in $M g C l_{2}$ being more than that in $N a C l$ , $M g C l_{2}$ solution will have higher osmotic pressure.

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Similar questions

Q. Solution 'A' contains

1.9 g/L M g C l_{2}

and solution 'B' contains

1.17 g/L of N a C l

. At room temperature, the osmotic pressure of:

Q. Assertion :

0.1 M

solution of

N a C l

has greater osmotic pressure than

0.1 M

solution of glucose at the same temperature. Reason:

In solution,

N a C l

dissociates to produce more number of particles.

Q. Match the items given in Column I and Column II.

	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

Osmotic pressure of 0.1 M solution of NaCl and Na₂SO₄ will be

Question 13
At a given temperature, osmotic pressure of a concentrated solution of asubstance.......... .
(a) is higher than that of a dilute solution
(b) is lower than that of a dilute solution
(c) is same as that of a dilute solution
(d) cannot be compared with osmotic pressure of dilute solution.

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Solution A contains 7g/L MgCl2 and solution b contains 7g/L of NaCl. At room temperature, the osmotic pressure of:

Solution $A$ contains $7 g / L M g C l_{2}$ and solution $b$ contains $7 g / L$ of $N a C l$ . At room temperature, the osmotic pressure of: