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Q. The commercial name for calcium hydride is
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Q. When Hydrogen starts burning in air, it produces
Q. Catalytic converters are generally made from:
Q. The shortest carbon – carbon bond distance is found in
Q. Which of the following one of the following elements is used in the manufacture of fertilizers
Q. Alloy steel containing chromium, to resist rusting, is known as
Q. Who among the following proved that Bacteria don’t originate by spontaneous generation?
Q. In bio fortification technique plant breeders use breeding to overcome
Q. Which one of the following is not the unit of energy
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