Chemistry Which among the following metals provides amphoteric oxide ? Sodium Calcium Aluminium Silver Sodium Calcium Aluminium Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element required for solar energy conversion ? Tantalum Silicon Beryllium Ultra pure carbon Tantalum Silicon Beryllium Ultra pure carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The name of plastic polymer from which combs, toys, bowls etc., can be made, is Polystyrene Polyurethane Teflon Metallic polysulphides Polystyrene Polyurethane Teflon Metallic polysulphides ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O3 and N2 O2 and O3 Oxides of N and S O2 and N2 O3 and N2 O2 and O3 Oxides of N and S O2 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Hardness Eutrophication Alkalinity Acidity Hardness Eutrophication Alkalinity Acidity ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Magnetite Limonite Haematite Siderite Magnetite Limonite Haematite Siderite ANSWER DOWNLOAD EXAMIANS APP
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