Chemistry Gunpowder consits of a mixture of Nitre, sulphur and charcoal TNT and charcoal Sand and TNT Sulphur, sand and charcoal Nitre, sulphur and charcoal TNT and charcoal Sand and TNT Sulphur, sand and charcoal 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 B and c A and c A and b C and d B and c A and c A and b C and d ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following in automobile exhaust can cause cancer? Polyclinic hydrocarbons Oxides of nitrogen Carbon monoxide Lead Polyclinic hydrocarbons Oxides of nitrogen Carbon monoxide Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which method will be employed to test the hardness of water? Boiling Formation of lather with soap Distillation None of these Boiling Formation of lather with soap Distillation None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the lowest electronegativity value Chlorine Fluorine Francium Radium Chlorine Fluorine Francium Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following, which one pollutes the air of a big city ? Copper Cadmium Chromium Lead Copper Cadmium Chromium Lead ANSWER DOWNLOAD EXAMIANS APP
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