Which one of the following is not a radioactive element?
Uranium
Radium
Thorium
Cadmium
Which one of the following is not a radioactive element?
Chemically, lime water is |
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A gas used as a disinfectant in drinking water is |
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Evaporation from water surfaces exposed to air is not dependent of the |
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Which among the following substances is used as a lubricant? |
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What does airbag, used for safety of car driver, contain? |
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The uranium fuel used worldwide is mainly in the form of |
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Chlorination is a process used for water purification. The disinfecting action of chlorine is mainly due to |
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Chemically, bleaching powder is |
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Consider the following: |
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The function of heavy water in a nuclear reactor is to |
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