Chemistry Which of the following is not a precious/semi-precious stone? Sapphire Pearl Ruby Emerald Sapphire Pearl Ruby Emerald ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 C and d A and b A and c B and c C and d A and b A and c B and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of common salt is Sodium Chloride Sodium Sodium Bicarbonate Sodium Oxide Sodium Chloride Sodium Sodium Bicarbonate Sodium Oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the maximum number of electrons that can be present in M-shell? 2 32 8 18 2 32 8 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanised iron is made by coating iron with Sulphur Chromium Nickel Zinc Sulphur Chromium Nickel Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Neutrons Electrons Positrons Protons Neutrons Electrons Positrons Protons ANSWER DOWNLOAD EXAMIANS APP
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