Chemistry The purest form of water in nature is Lake water River water Sea water Rain water Lake water River water Sea water Rain water ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight Increases First increases and then decreases Remains the same Decreases Increases First increases and then decreases Remains the same Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to make light weight, but strong plastic ? Polythene Nylon Methyl Methacrylate Polyvinyl Chloride Polythene Nylon Methyl Methacrylate Polyvinyl Chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Silicon Calcium Magnesium Sodium Silicon Calcium Magnesium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Threshold limit value of copper in the atmospheric air is 5.0 mg/m3 0.001 mg/m3 1.0 mg/m3 0.01 mg/m3 5.0 mg/m3 0.001 mg/m3 1.0 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry ice is the solid form of : Carbon di–oxide Water Air Nitrogen Carbon di–oxide Water Air Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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