SOLUTIONS

Which of the following is a dimensionless quantity

• Molarity

• molality

• mole fraction

• none of these

Which method is adopted for expressing the concentration of a solution, when the number of components in solution is more than two?

• Molarity

• molality

• mole fraction

• none of these

What will be the mole fraction of water in C₂H₅OH solution containing equal number of moles of water and C₂H₅OH?

• 0.1

• 0.2

• 0.3

• 0.5

10 gm glucose is dissolved in 400 gm. of solution. Calculate percentage concentration of the solution

• 2.5

• 25

• 2.56

• 25.6

How is the concentration of a solute present in trace amount in a solution expressed?

• Molarity

• molality

• mole fraction

• ppm

Which aqueous solution has higher concentration 1 molar or 1 molal solution of the same solute?

• 1 molar

• 1 molal

• both have same concentration

• both have same concentration

The number of components present in a binary solution is ------

• 1

• 2

• 3

• 4

The sum of mole fractions of all the components present in a solution is -----

• = 1

• < 1

• > 1

• = 0

Number of moles of solute present in 1 litre of a solution is called as ------

• molarity

• molality

• mole fraction

• mass percent

Number of moles of solute present in 1 kg of a solvent is called as ------

• molarity

• molality

• mole fraction

• mass percent