Chemistry Galvanization of iron is carried out using Copper Chromium Tin Zinc Copper Chromium Tin Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard steel contains 0.1 to 0.4 per cent carbon 0.5 to 1.5 per cent carbon 2 to 5 per cent carbon 0.01 to 0.04 per cent carbon 0.1 to 0.4 per cent carbon 0.5 to 1.5 per cent carbon 2 to 5 per cent carbon 0.01 to 0.04 per cent carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/6 1/4 1/8 1/3 1/6 1/4 1/8 1/3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of SO2 CO Unburnt petrol CO2 SO2 CO Unburnt petrol CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Ion exchange process Oxidation followed by settling and filtration Lime soda process or manganese zeolite process Chlorination Ion exchange process Oxidation followed by settling and filtration Lime soda process or manganese zeolite process Chlorination ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because Water and petrol are miscible with each other The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol react chemically Water and petrol are miscible with each other The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol react chemically ANSWER DOWNLOAD EXAMIANS APP
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