Online Science Quiz 1

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Genral Knowledge Science Quizz
This is the general knowledge questions and answers section on "GeneralScience".This quiz will test your general science knowledge.

1. Brass gets discoloured in air because of the presence of which of the following gases in air?

Oxygen
Hydrogen sulphide
Carbon dioxide
Nitrogen

2. Chlorophyll is a naturally occurring chelate compound in which central metal is

copper
magnesium
iron
calcium

3. Which of the following is a non metal that remains liquid at room temperature?

Phosphorous
Bromine
Chlorine
Helium

4. Which of the following is used in pencils?

Graphite
Silicon
Charcoal
Phosphorous

5. Which of the following metals forms an amalgam with other metals?

Tin
Mercury
Lead
Zinc

Score = Correct answers:

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