Chemistry Stains of rust on clothes can be removed by : H2O2 Oxalic acid Petrol Alcohol H2O2 Oxalic acid Petrol Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Magnesium Silicon Calcium Sodium Magnesium Silicon Calcium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Eutrophication Hardness Alkalinity Acidity Eutrophication Hardness Alkalinity Acidity ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer of atmosphere absorbs: Cosmic rays. Ultraviolet rays Infra-red rays All radiations of Light Cosmic rays. Ultraviolet rays Infra-red rays All radiations of Light ANSWER DOWNLOAD EXAMIANS APP
Chemistry Yellow Cake' an item of smuggling across border is Unreformed gold A crude from of cocaine Uranium oxide A crude from of heroin Unreformed gold A crude from of cocaine Uranium oxide A crude from of heroin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Nitrogen Helium Sulphur dioxide Carbon dioxide Nitrogen Helium Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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