Chemistry Which one of the following was used as a chemical weapon in the first world war ? Water gas Mustard gas Carbon monoxide Hydrogen cyanide Water gas Mustard gas Carbon monoxide Hydrogen cyanide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination Ion exchange process ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Alum Deactivated nitrogen Activated carbon Bleach Alum Deactivated nitrogen Activated carbon Bleach ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver used for making utensils is an alloy of Copper, silver, nickel Copper, zinc, aluminium Copper, nickel, aluminium Copper, zinc, nickel Copper, silver, nickel Copper, zinc, aluminium Copper, nickel, aluminium Copper, zinc, nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry In vulcanisation process, rubber can be hardened by adding Alcohol Nitrogen Silicon Sulphur Alcohol Nitrogen Silicon Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Neoprene is a polymer of Isobutane Isopentane Chloroprene Isoprene Isobutane Isopentane Chloroprene Isoprene ANSWER DOWNLOAD EXAMIANS APP
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