Q. In the human body, the most abundant element is
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Q. Which of the following one of the following metals does not react with water to produce Hydrogen
Q. Bleaching powder is used in drinking water as a/an
Q. An acid having basicity one is
Q. What is commonly called limestone is
Q. Passing a battery current through a solution of brine will produce
Q. Which of the following does not contain the material particles
Q. Helium gas is used in gas balloons instead of hydrogen gas because it is
Q. Molasses a by-product in the manufacture of sugar, is converted into
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