Chemistry Which of the following is used to remove rust stains on cloth? Petrol Oxalic acid solution Lime Kerosene Petrol Oxalic acid solution Lime Kerosene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Surface water is a better source of drinking water because it is poor in Arsenic Algae Bacteria Dust Arsenic Algae Bacteria Dust ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rectified spirit is : Methylated spirit 95% ethyl alcohol Tincture iodine 100% ethyl alcohol Methylated spirit 95% ethyl alcohol Tincture iodine 100% ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Nickel Zinc Chromium Lead Nickel Zinc Chromium Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Carbon-14 Phosphorus-31 Tritium Radium Carbon-14 Phosphorus-31 Tritium Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Lake water River water Rain water Sea water Lake water River water Rain water Sea water ANSWER DOWNLOAD EXAMIANS APP
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