Science MCQs

Practice multiple choice questions with instant feedback. Select an option to see if you're correct.

Total Questions
2100
Page 86 of 210
Question 851 Hard

Which statement about solubility is INCORRECT?

A
It depends on temperature
B
It depends on pressure
C
It is the same for all substances
D
It depends on the nature of solute and solvent
Question 852 Hard

What would happen if a saturated sugar solution is cooled?

A
More sugar can dissolve
B
Some sugar may crystallize
C
Solution becomes unsaturated
D
No change
Question 853 Hard

Which factor does NOT affect the rate of dissolving?

A
Color of solute
B
Stirring
C
Temperature
D
Size of solute particles
Question 854 Hard

A solution contains 10g of salt in 50g of water. What is the concentration of the solution?

A
10%
B
16.67%
C
20%
D
25%
Question 855 Hard

What would you observe if a saturated solution of sugar is filtered?

A
Sugar crystals on the filter paper
B
Clear solution passes through
C
The filter paper dissolves
D
The solution becomes cloudy
Question 856 Hard

Which combination is MOST likely to form a solution?

A
Sand and water
B
Oil and water
C
Vinegar and water
D
Iron filings and water
Question 857 Hard

How can you distinguish a colloid from a true solution?

A
By tasting it
B
By seeing if it can be filtered
C
By seeing if it scatters a beam of light (Tyndall effect)
D
By seeing if it is sweet
Question 858 Hard

A supersaturated solution is:

A
Very dilute
B
Stable and common
C
Unstable and contains more solute than saturated
D
The same as unsaturated
Question 859 Hard

Which factor is LEAST likely to affect the solubility of a solid in a liquid?

A
Stirring
B
Temperature
C
Pressure
D
Nature of solute and solvent
Question 860 Hard

What process is the opposite of dissolution?

A
Stirring
B
Crystallization
C
Evaporation
D
Heating
Showing 851-860 of 2100 questions

Quick Stats

Total Questions 10900
easy 5797
medium 2983
hard 2120

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