Chemistry Pollutant from motor car exhaust that causes mental disease is Hg Lead NO2 SO2 Hg Lead NO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to ? and ? rays Positive rays X-rays ?-rays ? and ? rays Positive rays X-rays ?-rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Nitrogen dioxide Nitrous oxide Coloured impurities Oxygen Nitrogen dioxide Nitrous oxide Coloured impurities Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The constituents of automobile exhaust that can cause cancer is/are : Polycyclic hydrocarbons Oxides of nitrogen Lead Carbon monoxide Polycyclic hydrocarbons Oxides of nitrogen Lead Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as a lubricant in heavy machines? Graphite Bauxite Phosphorus Sulphur Graphite Bauxite Phosphorus Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 100 years 13 days 3 billion years 0.01 minute 100 years 13 days 3 billion years 0.01 minute ANSWER DOWNLOAD EXAMIANS APP
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