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Q. The metal used to galvanise iron to protect it from rusting is
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Q. Temporary hardness is due to the presence of
Q. Which of the following substances does not contain oxygen?
Q. The chemical used for cloud seeding for artificial rains is
Q. The nucleus of an atom consists of
Q. The strongest oxidizing agent among the following is
Q. In photography, the compound of nitrogen used is
Q. What type of reaction is respiration?
Q. Which of the following is the chemical formula for Nitre (saltpeter)?
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