General Science – GK Mock test – 3




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





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