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7. The substance that dissolves in a liquid is known as: K 1
a. Solute
b. Solvent
c. Mixture
d. Solution
8. Common salt dissolves in water to form a solution. How can K&U 1
you get back common salt from the solution?
a. Filtration
b. Loading
c. Evaporation
d. Condensation

Subjective questions:-

Q. Questions Skill Marks
No.
1. What is solute? R 1
2. a. What is a mixture of solute and solvent called? U 1
3. DIRECTION: Each of these questions contains an U 1
Assertion followed by Reason. Read them
carefully and answer the question on the basis
of following options. You have to select the one that
best describes the two statements.
a) If both Assertion and Reason are correct and
Reason is the correct explanation of Assertion.
b) If both Assertion and Reason are correct, but
Reason is not the correct explanation of
Assertion.
c) If Assertion is correct but Reason is incorrect.
d) If Assertion is incorrect but Reason is correct.
e) If Assertion & Reason both are incorrect.
Assertion(A): Water is a universal solvent.
Reason(R): A large number of substances get dissolved in
water.
4. Define the following terms: U&A 3
a. Solvent
b. Insoluble substance
c. Solution
5. You have a glass of water. Add sugar to it and stir it with a HOT 5
glass rod.
(a) How can you say that the solution is unsaturated?
(b) How will you know the solution has become
saturated?
(c) How can you increase the solubility of the solute in
water?
(d) How does the solubility of common salt and sand
differ in water?

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