Chemistry Maximum permissible concentration of total hardness in drinking water is 100 500 200 50 100 500 200 50 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called None of these Eutrophication Green house effect Smog None of these Eutrophication Green house effect Smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is carbon dioxide chlorine alcohol sodium chlorine carbon dioxide chlorine alcohol sodium chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Oxidation of cellulose Collection of dust Frequent use Lack of aeration Oxidation of cellulose Collection of dust Frequent use Lack of aeration ANSWER DOWNLOAD EXAMIANS APP
Chemistry Charcoal is used in water treatment as a/an Solvent Coagulant Adsorbent Absorbent Solvent Coagulant Adsorbent Absorbent ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'laughing gas' is Nitric oxide Nitrogen pentoxide Nitrogen dioxide Nitrous oxide Nitric oxide Nitrogen pentoxide Nitrogen dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
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