Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Methane Nitrogen Hydrogen Helium Methane Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Nickel and cadmium Zinc and carbon Iron and cadmium Lead peroxide and lead Nickel and cadmium Zinc and carbon Iron and cadmium Lead peroxide and lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry A substance which readily forms colloidal solution in contact with water is called Hydrophilic colloid Associated colloid Extrinsic colloid Hydrophobic colloid Hydrophilic colloid Associated colloid Extrinsic colloid Hydrophobic colloid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The influence of temperature on reaction rate is predicted by Lewis equation Kirchhoff's equation Van der Waals equation Arrhenius equation Lewis equation Kirchhoff's equation Van der Waals equation Arrhenius equation ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Deactivated nitrogen Bleach Activated carbon Alum Deactivated nitrogen Bleach Activated carbon Alum ANSWER DOWNLOAD EXAMIANS APP