Chemistry What is used in storage batteries? Copper Zinc Tin Lead Copper Zinc Tin Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Radioactive rays Volcanic eruptions Aviation fuels Chlorofluorocarbons Radioactive rays Volcanic eruptions Aviation fuels Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Xenon Krypton Helium Argon Xenon Krypton Helium Argon 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. ? Lead peroxide and lead Iron and cadmium Nickel and cadmium Zinc and carbon Lead peroxide and lead Iron and cadmium Nickel and cadmium Zinc and carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of natural gas is: Propane Helium Nitrogen Methane Propane Helium Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Sulphonation Galvanization Vulcanization Acceleration Sulphonation Galvanization Vulcanization Acceleration ANSWER DOWNLOAD EXAMIANS APP
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