Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Poison used for killing rats is Zinc phosphide (Zn3P2) Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Magnesium phosphide (Mg3P2) Zinc phosphide (Zn3P2) Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Magnesium phosphide (Mg3P2) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brine refers to : Salt water Sweet water Starch water Pure water Salt water Sweet water Starch water Pure water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 12 gms 0.12 gms 1.2 gms 120 gms 12 gms 0.12 gms 1.2 gms 120 gms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Disinfectant Flocculator Precipitator Hydrolyser Disinfectant Flocculator Precipitator Hydrolyser ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Violet phosphorus White phosphorus Red phosphorus Black phosphorus Violet phosphorus White phosphorus Red phosphorus Black phosphorus ANSWER DOWNLOAD EXAMIANS APP
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