Q. Tritium is composed of
1) One proton, two electrons and one neutron
2) Two protons and one electron
3) One proton, one electron and one neutron
4) One proton, one electron and two neutrons
Q. The process of union of two or more molecules of a substance to form a large single molecule is called
1) Diffusion
2) Synthesis
3) Fusion
4) Polymerisation
Q. Which of the following groups of elements finds extensive application in the transistor industry?
1) Carbon and Platinum
2) Silicon and Germanium
3) Iridium and Germanium
4) Tungsten and Platinum
Q. In the Bhopal Gas Tragedy of 1984, which was the gas that leaked out?
1) Carbon monoxide
2) Hydrogen sulphide
3) Ethyl cyanide
4) Methyl isocyanate
Q. What is the main constituent of 'Gobar Gas' (biogas)?
1) Hydrogen
2) Carbon monoxide
3) Acetylene
4) Methane
Q. The gas used for cooking (LPG) is chiefly a mixture of-
1) Methane and carbon monoxide
2) Hydrogen and nitrogen
3) Butane and propane
4) Propane and nitrogen
Q. Washing Soda, used to soften water domestically, is actually -
1) Calcium Bicarbonate
2) Sodium Carbonate
3) Sodium Bicarbonate
4) Calcium Carbonate
Q. The fourth state of matter is known as
1) Gas
2) Vapour
3) Plasma
4) Electron
Q. Which of the following is the petroleum wax?
1) Bees wax
2) Carnauba wax
3) Paraffin wax
4) Jojoba wax
Q. Which of the following metals form an amalgam with other metals?
1) Lead
2) Tin
3) Zinc
4) Mercury
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