40% (w/V) of NaCl solution (density = 1.14 g/ml) is equivalent to: 
1. $0.35\times {10}^5 ppm$
2. $4\times {10}^6 ppm$
3. $3.5\times {10}^6 ppm$
4. $0.35\times {10}^6 ppm$

Match the terms given in Column I with expressions given in Column II.

Codes:

Match the items given in Column I with the type of solutions given in Column II.

Codes:

The mole fraction of glucose (C₆H₁₂O₆) in an aqueous binary solution is 0.1. The mass percentage of water in it to the nearest integer is:

The mole fraction of ethylene glycol (C₂H₆O₂) in a solution containing 20% of C₂H₆O₂ by mass is:

1. 0.932
2. 0.0672
3. 0.832
4. 0.732

The molarity of a solution containing 5 g of NaOH in 450 mL solution is:

1. 0.188 mol dm^–3

2. 0.478 mol dm^–3

3. 0.378 mol dm^–3

4. 0.278 mol dm^–3

4 L of 0.02 M aqueous solution of NaCl was diluted by adding 1 L of water. The molarity of the resultant solution is:

The molality of 2.5 g of ethanoic acid (CH₃COOH) in 75 g of benzene is:

1. 0.656 mol kg^–1

2. 0.616 mol kg^–1

3. 0.556 mol kg^–1

4. 0.456 mol kg^–1

The molarity of 30 g Co(NO₃)₂. 6H₂O in 4.3 L of solution is:

1. 0.053 M
2. 0.043 M
3. 0.023 M
4. 0.063 M