Solutions

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Question

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Question 1 :

A 5.2 molal aqueous solution of methyl alcohol, CH₃OH is supplied. What is the mole fraction of methyl alcohol in the solution?

1. 0.050
2. 0.100
3. 0.190
4. 0.086
Answer
5605

Question 2 :

When the concentration is expressed as the number of moles of a solute per litre of solution it known as

1. Normality
2. Molarity
3. Mole fraction
4. Mass percentage
Answer
5606

Question 3 :

The statement “If 0.003 moles of a gas are dissolved in 900 g of water under a pressure of 1 atmosphere, 0.006 moles will be dissolved under a pressure of 2 atmospheres”, illustrates

1. Dalton’s law of partial pressure
2. Graham’s law
3. Raoult’s law
4. Henry’s law
Answer
5608

Question 4 :

What will be the molarity of a solution containing 5g of sodium hydroxide in 250 ml solution

1. 0.5
2. 1.0
3. 2.0
4. 0.1
Answer
5609

Question 5 :

Dialysis can be used to separate

1. glucose and fructose
2. protein and starch
3. glucose and protein
4. glucose and NaCl
Answer
5612