Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 –4 Zero 4 8 –4 Zero 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron filings can be separated from a heterogenous mixture using the technique of : Magnetization Sedimentation Evaporation Sublimation Magnetization Sedimentation Evaporation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Atoms in all matter Electrons in atoms Nucleus in atoms Neutrons in atoms Atoms in all matter Electrons in atoms Nucleus in atoms Neutrons in atoms 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 Type metal used in printing press is an alloy of Lead and zinc Lead and antimony Lead and copper Lead and bismuth Lead and zinc Lead and antimony Lead and copper Lead and bismuth ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following will replace hydrogen from acids to form salts ? P Na Ag S P Na Ag S ANSWER DOWNLOAD EXAMIANS APP
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