Page 1 - 4. Home Assignment-Properties and Conc. of Solution

SAI International School
Subject-Chemistry

Ch-Is Matter around us pure?
Topic- Properties and concentration of solutions

HOME ASSIGNMENT

OBJECTIVE QUESTIONS

DIRECTION:Each of these questions contains an 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.

Q.1 Assertion: The concentration of a solution is expressed in terms of quantity of
the solvent.

Reason: Mass percentage is the ratio between mass of solute and mass of solution
multiplied by 100.

Q.2 Assertion: Concentrated solutions contain more of solute dissolved.

Reason: In concentrated solutions the number of solute particles are comparatively
higher.

Q.3 Assertion: Volume-Volume percentage is used for solid solutes.

Reason: Determining the volumes of solid solutes is difficult.

Q.4 Assertion: Concentration of solutions are expressed in terms of mass- mass
percentage only.

Reason: Determination of masses of solutes is always easier.

Q.5 Assertion: The concentration of 500mL of sugar solution which contains 100
grams of sugar is 5% mass/mass.

Reason:

=

Q. 6 Which of the following about dilute solutions is correct?

a) they contain more amount of solution.

b) they contain more amount of solvent.