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Q. The chemical name of vitamin C is
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Q. Which bond has the greatest ionic character?
Q. The working of a dry cell is based on
Q. A balloon filled with helium rises in air because
Q. When the universal gas constant (R) is divided by Avogadro's number (N), their ratio is called
Q. The gas emitted by burning wood is mainly
Q. A catalyst remains unchanged at the end of the reaction with regard to
Q. Soda bicarbonate is useful as a fire extinguisher because
Q. In an atomic nucleus, neutrons and protons are held together by
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