GENERAL SCIENCE MCQS SET 10

GENERAL SCIENCE MCQS SET 10

1. When sulphur dioxide is dissolve in water then-
a. Sulphur is formed
b. Sulphur trioxide is formed
c. Sulphuric acid is formed
d. Sulphurous acid is formed.
Ans: (c)
 
2. What is the chemical formula of sulphurous acid-
a. H2SO4
b. SO2
c. SO3
d. H2SO3
Ans:(d)
 
3. The sulphuric acid turns blue litmus paper into-
a. Red
b. Green
c. Yellow
d. Dark blue
Ans:(a)
 
4. Oxides of non metals are _______ in nature
a. Basic
b. Acidic
c. Neutral
d. All of these
Ans:(b)
 
5. Sodium metal is stored in-
a. Water
b. Alcohol
c. Kerosene
d. Ether
Ans:(c)
 
6. Which one of the following metal reacts vigorously with oxygen and water?
a. Sodium
b. Potassium
c. Calcium
d. Magnesium
Ans:(a)
 
7. Which metal is present in Calcium Hydroxide?
a. C
b. O
c. Ca
d. H
Ans:(c)
 
8. Which non-metal catches fire if the exposed to air
a. Sodium
b. Phosphorous
c. Calcium
d. Uranium
Ans:(b)
 
9. What is the chemical formula of copper sulphate?
a. CuSO4
b. CuCO3
c. CuCl2
d. CuO
Ans:(b)
 
10. Which gas are produced when metal react with acids
a. Oxygen
b. Nitrogen
c. Hydrogen
d. Carbon dioxide
Ans:(c)