Chemistry The greenhouse effect is caused by the higher level of which gas in the atmosphere ? Carbon dioxide Carbon monoxide Nitrous oxide Sulphur dioxide Carbon dioxide Carbon monoxide Nitrous oxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? Na2O + K2O Al2O3 CaSO4, 2H2O CaO Na2O + K2O Al2O3 CaSO4, 2H2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen has (+) oxidation number only in OF2 N2O H2O (2) C12O OF2 N2O H2O (2) C12O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas emitted by power stations causes acid rain? Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when it is left in open for some time. This happens due to the formation of Citric acid Lactic acid Acetic acid Carbonic acid Citric acid Lactic acid Acetic acid Carbonic acid ANSWER DOWNLOAD EXAMIANS APP
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