Chemistry Hard steel contains 0.01 to 0.04 per cent carbon 0.1 to 0.4 per cent carbon 2 to 5 per cent carbon 0.5 to 1.5 per cent carbon 0.01 to 0.04 per cent carbon 0.1 to 0.4 per cent carbon 2 to 5 per cent carbon 0.5 to 1.5 per cent carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver used for making utensils is an alloy of Copper, zinc, aluminium Copper, zinc, nickel Copper, nickel, aluminium Copper, silver, nickel Copper, zinc, aluminium Copper, zinc, nickel Copper, nickel, aluminium Copper, silver, nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process which does not evolve CO2 in air is Burning Organic delay Photosynthesis Breathing Burning Organic delay Photosynthesis Breathing ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical formula of the laughing gas is N2O N2O3 NO NO2 N2O N2O3 NO NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Hydrogen peroxide Sodium peroxide Barium peroxide Ozone Hydrogen peroxide Sodium peroxide Barium peroxide Ozone ANSWER DOWNLOAD EXAMIANS APP
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