Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Ozone Hydrogen peroxide Barium peroxide Sodium peroxide Ozone Hydrogen peroxide Barium peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as a lubricant in heavy machines? Bauxite Phosphorus Graphite Sulphur Bauxite Phosphorus Graphite Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is extracted from Cinnabar Dolomite Haematite Bauxite Cinnabar Dolomite Haematite Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sweat contains water and ________ Salt Citric acid Vinegar Lactic acid Salt Citric acid Vinegar Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is extensively used for sterilizing water ? Borax powder Bleaching powder Alum Soda powder Borax powder Bleaching powder Alum Soda powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is known as carbolic acid? Phenol Ethanol Oxalic acid Acetic acid Phenol Ethanol Oxalic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
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