Chemistry The iron ore magnetite consists of Fe3OH4 3Fe2O3 .. 3H2O Fe2O3 FeCO3 Fe3OH4 3Fe2O3 .. 3H2O Fe2O3 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, which is always found in free-state in nature? Sodium Copper Silver Gold Sodium Copper Silver Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Sulphur dioxide Nitrous oxide Arsine Ammonia Sulphur dioxide Nitrous oxide Arsine Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following in automobile exhaust can cause cancer? Lead Polyclinic hydrocarbons Carbon monoxide Oxides of nitrogen Lead Polyclinic hydrocarbons Carbon monoxide Oxides of nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamonds are glittering and attractive because light incident on them undergoes Multiple internal reflections Multiple surface reflections Highest refraction Hundred percent transmission Multiple internal reflections Multiple surface reflections Highest refraction Hundred percent transmission ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
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