Chemistry Brass is a solution of molten copper in Gaseous zinc Solid zinc Molten zinc Molten tin Gaseous zinc Solid zinc Molten zinc Molten tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The alkaloid naturally found in coffee, cocoa and cola nut is Tannin Morphine Cocaine Caffeine Tannin Morphine Cocaine Caffeine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peroxyacetyl nitrate is a Secondary pollutant Vitamin Plant hormone Acidic dye Secondary pollutant Vitamin Plant hormone Acidic dye ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' Robert Boyle Democritus Antoine Lavoisier John Dalton Robert Boyle Democritus Antoine Lavoisier John Dalton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater has a pH level of 8.3 5.6 3.2 6.3 8.3 5.6 3.2 6.3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is '6.023 × 10–23 '6.023 × 10–20 6.023 × 1023 6.023 × 1020 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1023 6.023 × 1020 ANSWER DOWNLOAD EXAMIANS APP
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