Chemistry Which of the following is used to remove rust stains on cloth? Oxalic acid solution Kerosene Petrol Lime Oxalic acid solution Kerosene Petrol Lime ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because Helium is less dense than air The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon Helium is less dense than air The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Nitrous oxide, Chloroform Ether, Ammonia Nitrogen dioxide, ether Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform Ether, Ammonia Nitrogen dioxide, ether Chloroform, Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Nickel Lead Zinc Chromium Nickel Lead Zinc Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the atmosphere is mainly caused by Nitrogen dioxide Chlorofluorocarbon Sulphur dioxide Hydrogen sulphide Nitrogen dioxide Chlorofluorocarbon Sulphur dioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
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