Chemistry The first metal used by man was copper bronze gold iron copper bronze gold iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of one Avogadro number of helium atom is 4 x 6.02 x 1023 gram 1.00 gram 4.00 gram 8.00 gram 4 x 6.02 x 1023 gram 1.00 gram 4.00 gram 8.00 gram ANSWER DOWNLOAD EXAMIANS APP
Chemistry Curd is sour due to presenceof Acetic acid Tartaric acid Lactic acid Oxalic acid Acetic acid Tartaric acid Lactic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry White coal is Diamond Uranium None of these Hydro-electricity Diamond Uranium None of these Hydro-electricity ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard water and soft water can be distinguished by using Ordinary soap Liquid soap Detergent Dilute acid Ordinary soap Liquid soap Detergent Dilute acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals does not react with water to produce Hydrogen ? Lithium Sodium Cadmium Potassium Lithium Sodium Cadmium Potassium ANSWER DOWNLOAD EXAMIANS APP
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