Solutions and Electrolytes - Chapter No 7

Right Answers have been shown below in red color.

1. The solution is a ___________ mixture of two or more two than pure substances.

a) Homogeneous
b) Solute
c) Concentration
d) Dilute

2. In solution, the large amount component is called ___________.

a) Homogeneous
b) Solvent
c) Solution
d) Composition

3. The component of solution which is in lesser amount, is called___________.

a) Homogeneous
b) Solvent
c) Solute
d) Composition

4. Volume, ___________ or moles, are usually called concentration units.

a) Number
b) Weight
c) Percentage
d) Solvent

5. The formula for molarity is ___________.

a) M = number of moles of solute / number of dm3 of solution
b) M = number of dm3 of solution / number of moles of solute
c) M = wt of solute / Eq wt of solute
d) None of these

6. What weight of (NaOH) is required to prepare 0.01M solution in 750 cm3.

a) 40 g
b) 3 g
c) 30 g
d) 0.3 g

7. What weight of NaOH is required to prepare 0.2 M solution in 750 cm3?

a) 9 g
b) 6 g
c) 3 g
d) 5 g

8. The equivalent weight of (NaOH) is ___________.

a) 90 g
b) 60 g
c) 40 g
d) 50 g

9. What is the molarity of a solution containing 45.0 g of glucose (C6H12O6) in 400 mls of water?

a) 4.25 mol
b) 6.25 mol
c) 3.25 mol
d) 0.625

10. The molal solution is the solution whose molality is _____________.

a) Ten
b) Five
c) One
d) Four

11. The process in which water molecules surround and interact with solute ions or molecules, is called ____________.

a) Hydration
b) Solvation
c) Product
d) Molecules

12. The number of moles of a substance divided by the total moles of all the substances, is called
____________.

a) Hydration
b) Solvation
c) Mole fraction
d) Component

13. In the process of hydration, bond of water does not____________.

a) Form
b) Break
c) Mix
d) Saturated

14. We can say that CuSO4.5H2O is a ____________.

a) Hydrate
b) Crystal
c) Ion
d) Molecule

15. “Ksp” is called____________.

a) Hydrate product
b) super product
c) Simple product
d) Solubility product

16. At a given temperature, when the maximum amount of solute is dissolved in the solution then it is called____________.

a) Saturated solution
b) Unsaturated solution
c) Super saturated solution
d) None of these

17. The negatively charged ionic substances are generally bigger have____________ ions.

a) Positive
b) Negative
c) Complex
d) Algebraic

18. Cations are also called ____________ ions.

a) Negative
b) Positive
c) Complex
d) None of these

19. Anions are also called ____________ ions

a) Positive
b) Negative
c) Complex
d) None of these

20. The flow of electrons is called____________..

a) Influence
b) Current
c) Ions
d) Molecules

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