Chemistry Which of the following is a man-made source of air pollution ? Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are Dry ice or frozen carbon dioxide All listed here Sodium Chloride Silver Iodide Dry ice or frozen carbon dioxide All listed here Sodium Chloride Silver Iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Copper and tin Lead and antimony Lead and tin Copper and zinc Copper and tin Lead and antimony Lead and tin Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which fails to liberate carbon dioxide from sodium bicarbonate is : Carbonic acid Acetic acid Sulphuric acid Formic acid Carbonic acid Acetic acid Sulphuric acid Formic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance that is added to make natural rubber strong and more bouncy is Chlorine Polythene Sponge Sulphur Chlorine Polythene Sponge Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is Na2SO4.10H2O Ca(OH)2 NaHCO3 Na2CO3.10H2O Na2SO4.10H2O Ca(OH)2 NaHCO3 Na2CO3.10H2O ANSWER DOWNLOAD EXAMIANS APP
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