General Knowledge MCQ - English
The hardest substance available on earth is
Gold
Iron
Diamond
Platinum
Answer : C
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1) Which of the following is used as a lubricant?
2) Which of the gas is not known as green house gas?
3) The group of metals Fe, Co, Ni may best called as
4) In an atomic explosion, enormous energy is released which is due to
conversion of chemical energy into heat energy
conversion of mechanical energy into nuclear energy
conversion of mass into energy
conversion of neutrons into protons
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5) Very small time intervals are accurately measure by
