Chemistry Type metal used in printing press is an alloy of Lead and zinc Lead and bismuth Lead and copper Lead and antimony Lead and zinc Lead and bismuth Lead and copper Lead and antimony ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Water Oxides of mineral elements Carbon dioxide Carbonates from soil Water Oxides of mineral elements Carbon dioxide Carbonates from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pH of human blood is between : 44052 7.5-8 4.5-5 6.5-7 44052 7.5-8 4.5-5 6.5-7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of natural gas is: Helium Methane Propane Nitrogen Helium Methane Propane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is the sum of the number of protons and neutrons present in the nucleus always less than its atomic number always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus always less than its atomic number always more than the atomic weight a fraction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical formula of the laughing gas is N2O3 N2O NO2 NO N2O3 N2O NO2 NO ANSWER DOWNLOAD EXAMIANS APP
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