Chemistry Which of the following metals can displace copper from copper sulphate solution ? Mercury Platinum Gold Iron Mercury Platinum Gold Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Carbon monoxide Oxygen Carbon dioxide Ozone Carbon monoxide Oxygen Carbon dioxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms having the same number of protons but different number of neutrons are called : Isotopes Anions Cations Higgs-boson Isotopes Anions Cations Higgs-boson ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 3 –3 to + 6 –3 to + 4 –3 to + 5 –3 to + 3 –3 to + 6 –3 to + 4 –3 to + 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a characteristic feature of alloys? They are Homogeneous systems Compounds Solutions Mixtures Homogeneous systems Compounds Solutions Mixtures ANSWER DOWNLOAD EXAMIANS APP
Chemistry Threshold limit value of copper in the atmospheric air is 0.001 mg/m3 5.0 mg/m3 1.0 mg/m3 0.01 mg/m3 0.001 mg/m3 5.0 mg/m3 1.0 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
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