Chemistry Which of the following metals is not a pollutant ? Mercury Arsenic Lead Aluminium Mercury Arsenic Lead Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major constituent of air is oxygen nitrogen carbon dioxide hydrogen oxygen nitrogen carbon dioxide hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to ? and ? rays Positive rays ?-rays X-rays ? and ? rays Positive rays ?-rays X-rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tar roads get damaged if there is Heavy traffic Stagnation of water on road No maintenance No sloping Heavy traffic Stagnation of water on road No maintenance No sloping ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the earth’s atmosphere is Krypton Argon Nitrogen Oxygen Krypton Argon Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ferrous sulphate is used in water treatment as a/an Adsorbent Oxidizing agent Coagulant aid Reducing agent Adsorbent Oxidizing agent Coagulant aid Reducing agent ANSWER DOWNLOAD EXAMIANS APP
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