EXAMIANS
Sodium bicarbonate is commercially known as
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The product, 9-nitroanthracene is obtained from anthracene by the action of
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Suspension particles have the size between
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The next higher homologue of C6H14 is
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An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is
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Which of the following is a secondary pollutant ?
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Which one of the following elements is used in the manufacture of fertilizers ?
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Petroleum is a mixture of
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If lime water is kept in the air, it turns milky due to presence of :
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Which one of the following forms of phosphorus is most reactive?
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