Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Magnesium Calcium Manganese None of these Magnesium Calcium Manganese None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is always less than its atomic number always more than the atomic weight the sum of the number of protons and neutrons present in the nucleus a fraction always less than its atomic number always more than the atomic weight the sum of the number of protons and neutrons present in the nucleus a fraction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Ether, Ammonia Nitrogen dioxide, ether Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform Ether, Ammonia Nitrogen dioxide, ether Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Iron Copper Aluminium Zinc Iron Copper Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air is said to be saturated when : It blows over the barren land Its thickness is maximum Its pressure is minimum It contains maximum content of water vapour It blows over the barren land Its thickness is maximum Its pressure is minimum It contains maximum content of water vapour ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the human body is Carbon Iron Oxygen Nitrogen Carbon Iron Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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