Chemistry Solder metal is an alloy of Lead and antimony Copper and zinc Lead and tin Copper and tin Lead and antimony Copper and zinc Lead and tin Copper and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soldering of two metals is possible because of the property of : Cohesion Osmosis Viscosity Surface tension Cohesion Osmosis Viscosity Surface tension 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 b C and d A and c B and c A and b C and d A and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Sulphur dioxide Methane None of these Carbon dioxide Sulphur dioxide Methane None of these Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Nitrogen Methane Hydrogen Helium Nitrogen Methane Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is 2.05 gram 3.05 gram 4.05 gram 5.05 gram 2.05 gram 3.05 gram 4.05 gram 5.05 gram ANSWER DOWNLOAD EXAMIANS APP