Physical and Chemical Changes NDA Questions

NDA Chemistry

Physical and Chemical Changes MCQ Questions


13.
If the amount of solute contained in a solution is less than the saturation level, it is called an _____ solution
A.
Saturated
B.
Unsaturated
C.
Dilute
D.
Concentrated
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ANSWER :
B. Unsaturated
14.
The concentration of a solution is the amount (mass or volume) of _____ present in a given amount (mass or volume) of solution.
A.
Liquid
B.
Solution
C.
Solute
D.
Solvent
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ANSWER :
C. Solute
15.
A solution contains 40 g of common salt in 320 g of water. Calculate the mass of solution.
A.
360 g
B.
310 g
C.
300 g
D.
280 g
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ANSWER :
A. 360 g
16.
A _____ is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium
A.
Saturated
B.
Dilute
C.
Solute
D.
Suspension
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ANSWER :
D. Suspension
17.
Which of the following is an example for colloidal solution?
A.
Muddy water
B.
Milk
C.
Mixture of chalk in water
D.
Oil and water
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ANSWER :
B. Milk
18.
The scattering of beam of light is called as
A.
Inductive effect
B.
Relativistic effect
C.
Tyndall effect
D.
Resonance effect
😑 View Answer Rough Work Error
ANSWER :
C. Tyndall effect