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Q. The common name of sodium bicarbonate is
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Q. Which of the following gases is present under pressure in soft drinks?
Q. Cooking gas is a mixture of
Q. Stalactites & Stalagmites form due to the precipitation of:
Q. The percentage of oxygen in air is approximately
Q. Which component is used to harden the rubber in the vulcanization process?
Q. The number of g-molecule of oxygen in 6.02 x 10^24 CO molecules is
Q. The number of moles of solute present in 1 kg of a solvent is called its
Q. The coating of a thin layer of zinc on steel or iron objects is known as
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