Chemistry The percentage of nitrogen present in ammonium sulphate is : 0.25 0.305 0.18 0.27 0.25 0.305 0.18 0.27 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is pure matter ? Carbon–dioxide Iron Brass Air Carbon–dioxide Iron Brass Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The working of a dry cell is based on Electrolysis Decomposition reaction Combination reaction Spontaneous oxidation-reduction reaction Electrolysis Decomposition reaction Combination reaction Spontaneous oxidation-reduction reaction 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? 0.01 minute 100 years 13 days 3 billion years 0.01 minute 100 years 13 days 3 billion years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Smoke Oxides of nitrogen Oxides of sulphur Hydrocarbon Smoke Oxides of nitrogen Oxides of sulphur Hydrocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron rusts quickly in Distilled water Rain water Sea water River water Distilled water Rain water Sea water River water ANSWER DOWNLOAD EXAMIANS APP
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