Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Helium Neon Nitrogen Argon Helium Neon Nitrogen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is added to aviation gasoline because it Increases efficiency of petrol Reduces evaporation of petrol Reduces consumption of petrol Prevents freezing of petrol Increases efficiency of petrol Reduces evaporation of petrol Reduces consumption of petrol Prevents freezing of petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The property of hydrogen which distinguishes it from alkali metals is Its affinity for non-metal Its reducing character Its electropositive character Its non-metallic character Its affinity for non-metal Its reducing character Its electropositive character Its non-metallic character ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Electrons in atoms Nucleus in atoms Atoms in all matter Neutrons in atoms Electrons in atoms Nucleus in atoms Atoms in all matter Neutrons in atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Semiconductors Solar energy devices Transistors All of these Semiconductors Solar energy devices Transistors All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Sulphur Magnesium Silicon Phosphorous Sulphur Magnesium Silicon Phosphorous ANSWER DOWNLOAD EXAMIANS APP