Chemistry Which substance is used to retard the setting action of cement? CaO Na2O + K2O Al2O3 CaSO4, 2H2O CaO Na2O + K2O Al2O3 CaSO4, 2H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Mercury Lead Aluminium Arsenic Mercury Lead Aluminium Arsenic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Steam engine Burning coal Burning garbage Coal fire Steam engine Burning coal Burning garbage Coal fire ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap helps in better cleaning of clothes because Soap acts like catalyst It absorbs the dirt It reduces the surface tension of solution It gives strength to solution Soap acts like catalyst It absorbs the dirt It reduces the surface tension of solution It gives strength to solution ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a major green house gas? Carbon dioxide Carbon monoxide Freon Chloro fluorocarbon Carbon dioxide Carbon monoxide Freon Chloro fluorocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most reactive halogen Bromine Iodine Fluorine Chlorine Bromine Iodine Fluorine Chlorine ANSWER DOWNLOAD EXAMIANS APP
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