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Q. The fundamental particles present in the nucleus of an atom are
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Q. Water gas is the mixture of
Q. Most poisonous pollutant in water is
Q. What is the half life of the longest lived isotope of Francium?
Q. PVC is obtained by the polymerisation of
Q. The dye FBA is used for dyeing
Q. Which of the following of the process is known as nitrification
Q. The chemical used in developing photographic films is
Q. Which of the following metals is not a pollutant ?
Q. A dark-purple compound used as an antiseptic and disinfectant is
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