Chemistry Which of the following is used to remove ink and rust stains on cloth? Oxalic acid Ether Kerosene oil Alcohol Oxalic acid Ether Kerosene oil Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is heaviest naturally-occurring element of the periodic element Thorium Uranium Iron Rhodium Thorium Uranium Iron Rhodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is distillation boiling adding sodium carbonate adding caustic soda distillation boiling adding sodium carbonate adding caustic soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Chalk and graphite Limestone and graphite Limestone and clay Clay and graphite Chalk and graphite Limestone and graphite Limestone and clay Clay and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Zone refining Roasting Electrolysis Oxidation Zone refining Roasting Electrolysis Oxidation ANSWER DOWNLOAD EXAMIANS APP
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