General Science – GK Mock test – 3




Welcome to your General Science - GK Mock test - 3
Take an exciting test in General Knowledge - Indian Histroy
You have only 15 mins to complete the test (15 Questions)
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1. Which of the following is used as a lubricant?
2. Which of the following metals forms an amalgam with other metals?
3. The gas usually filled in the electric bulb is
4. Chlorophyll is a naturally occurring chelate compound in which central metal is
5. Bromine is a
6. The hardest substance available on earth is
7. Chemical formula for water is
8. The variety of coal in which the deposit contains recognisable traces of the original plant material is
9. Washing soda is the common name for
10. Which of the following is a non metal that remains liquid at room temperature?
11. Brass gets discoloured in air because of the presence of which of the following gases in air?
12. Which of the gas is not known as green house gas?
13. Which of the following is used in pencils?
14. Quartz crystals normally used in quartz clocks etc. is chemically
15. Tetraethyl lead is used as





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