Q U I Z
Welcome to quize play
1 Brass gets discoloured in air because of the presence of which of the following gases in air?
B) Hydrogen sulphide
C) Carbon dioxide
2 Which of the following is a non metal that remains liquid at room temperature?
3 Chlorophyll is a naturally occurring chelate compound in which central metal is
4 Which of the following is used in pencils?
5 Which of the following metals forms an amalgam with other metals?
6 The gas usually filled in the electric bulb is
C) carbon dioxide
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