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Solutions · Question 51

AIPMT 2002MCQEasy📈 Topic in 25% papers+4−1
1

A solution contains non-volatile solute of molecular mass M2. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure?

  1. M2 = ( m2 )VRT
  2. M2 = ( m2V ) RT
  3. M2 = ( m2V ) RT
  4. M2 = ( m2V ) RT

Answer

(2) M2 = ( m2V ) RT

Solution

As per NCERT, osmotic pressure = CRT = n2VRT

n2 = m2M2 ⇒ = m2 RTM2 V

∴ M2 = ( m2V ) RT

Answer: (2)

AIPMT 2002

Keep practising — Solutions

2

Pure water can be obtained from sea water by

  1. centrifugation
  2. plasmolysis
  3. reverse osmosis
  4. sedimentation
AIPMT 2001
3

From the colligative properties of solution, which one is the best method for the determination of molecular weight of proteins and polymers?

  1. Osmotic pressure
  2. Lowering in vapour pressure
  3. Lowering in freezing point
  4. Elevation in boiling point
AIPMT 2000

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