Chemistry Zone refining is used for the purification of Au Ag Ge Cu Au Ag Ge Cu ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Galvanisation Corrosion Reduction Sublimation Galvanisation Corrosion Reduction Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Hydrogen Helium Air Nitrogen Hydrogen Helium Air Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one out of the following helps in burning ? Carbon dioxide Carbon monoxide Nitrogen Oxygen Carbon dioxide Carbon monoxide Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following vegetable oils is used in the manufacture of paints? Linseed oil Sunflower oil Palm oil Cottonseed oil Linseed oil Sunflower oil Palm oil Cottonseed oil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Limonite Haematite Siderite Magnetite Limonite Haematite Siderite Magnetite ANSWER DOWNLOAD EXAMIANS APP
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