Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? None of these Aluminium sulphate Solder Aluminium powder None of these Aluminium sulphate Solder Aluminium powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of copper in drinking water in mg/L is 2 1 0.01 0.05 2 1 0.01 0.05 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a micro-element ? Hydrogen Oxygen Chlorine Nitrogen Hydrogen Oxygen Chlorine Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a pure form of carbon Diamond Graphite Coal Gold Diamond Graphite Coal Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following type of coal has the lowest proportion of volatile matter ? Bituminous Peat Lignite Anthracite Bituminous Peat Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The biogas used for cooking is a mixture of which of the following? Carbon dioxide and oxygen Methane and carbon monoxide Isobutane and propane Methane and carbon dioxide Carbon dioxide and oxygen Methane and carbon monoxide Isobutane and propane Methane and carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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