Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Visible Ultraviolet Infrared Radio-waves Visible Ultraviolet Infrared Radio-waves ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to emission of which of the following in to the atmosphere ? Carbon monoxide and nitrogen Ozone and carbon dioxide Oxides of nitrogen and sulphur Carbon dioxide and carbon monoxide Carbon monoxide and nitrogen Ozone and carbon dioxide Oxides of nitrogen and sulphur Carbon dioxide and carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? Al2O3 CaSO4, 2H2O Na2O + K2O CaO Al2O3 CaSO4, 2H2O Na2O + K2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Carbon dioxide None of these Methane Sulphur dioxide Carbon dioxide None of these Methane Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Nitrogen Methane All of these Ethane Nitrogen Methane All of these Ethane ANSWER DOWNLOAD EXAMIANS APP
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