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Osmotic Pressure

Which of the ...

Question

Which of the following solutions has highest osmotic pressure?

A

1 M NaCl

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B

1 M urea

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C

1 M sucrose

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D

1 M glucose

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Solution

The correct option is B
1 M NaCl

NaCl gives maximum number of ions hence it will show highest osmotic pressure.

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Similar questions

Q. Arrange the following solutions in increasing order of their osmotic pressures
(i)

34.2 g / l i t r e

60 g / l i t r e

90 g / l i t r e

of glucose
(iv)

58.5 g / l i t r e

of sodium chloride

Q. The relationship between osmotic pressure at 273 K when 10 g glucose, 10 g urea and 10 g sucrose are dissolved in 250 mL of water to form separate solutions is:
[

P_{1}, P_{2}

P_{3}

are osmotic pressure of glucose,urea and sucrose solution respectivitely]

Q. The relationship between osmotic pressure at 273 K when 10 g glucose, 10 g urea and 10 g sucrose are dissolved in 250 mL of water to form separate solutions is:

_{1}

_{2}

_{3}

are osmotic pressure of glucose, urea and sucrose solution respectively]

Q. What would be the osmotic pressure of

0.05 M

solution of sucrose at

5^{o} C

? Find out the concentration of a solution of glucose which would be isotonic with this solution of sucrose.

(Molecular mass of sucrose

= 342

, Molecular mass of glucose

= 180

Q. The relationship between osmotic pressures

(π_{g l u c o s e}, π_{u r e a} a n d π_{s u c r o s e})

at a definite temperature when

1 g

1 g

1 g

sucrose are dissloved in

1 l i t r e

of water is:
(Assume

Vant Hoff factor (i) = 1

for all):
Molecular masses for urea, glucose and sucrose are

60 g / m o l, 180 g / m o l & 342 g / m o l

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