Important Chemistry GK Questions
Which of the following is the conductor of nonmetal electricity?
(A) graphite
(B) Copper
(C) Sulfur
(D) diamond
Correct Answer : A
Is zinc ore?
(A) zinc blade
(B) Bauxite
(C) sodium chloride
(D) Sinawar
Correct Answer : A
What percentage of carbon is in steel?
(A) 3%
(B) 4%
(C) 2%
(D) 5%
Correct Answer : C
Which metal starts floating when put in water?
(A) calcium
(B) Nickel
(C) Magnesium
(D) Potassium
Correct Answer : A
What is an oxidation-reduction reaction called?
(A) endothermic reaction
(B) Redox reaction
(C) precipitation reaction
(D) exothermic reaction
Correct Answer : B
In the presence of sunlight, plants prepare their food (glucose) with CO2 and water. What is this reaction?
(A) Displacement
(B) Disintegration
(C) Photochemical
(D) precipitation
Correct Answer : C
Explanation :
Photochemical is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
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