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Q. The acid which fails to liberate carbon dioxide from sodium bicarbonate is
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Q. Hypo, used in photography, is chemically
Q. The compound that IS NOT responsible for acid rain is
Q. When zinc reacts with hydrochloric acid, the gas evolved is
Q. Which of the following metals forms an amalgam with other metals ?
Q. Of the following, the content of carbon is minimum in
Q. All isotopes of the same element have
Q. What is the half life of the longest lived isotope of Francium?
Q. With reference to metals and their ores, which of the following pairs is INCORRECT?
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