Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and b C and d A and c B and c A and b C and d A and c B and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Sulphur dioxide Carbon monoxide Nitrogen dioxide Methane Sulphur dioxide Carbon monoxide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? CaSO4, 2H2O Al2O3 Na2O + K2O CaO CaSO4, 2H2O Al2O3 Na2O + K2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Carbon monoxide Sulphur dioxide Chlorine Carbon dioxide Carbon monoxide Sulphur dioxide Chlorine Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is absorbed Temperature decreases Heat is liberated No heat change takes place Heat is absorbed Temperature decreases Heat is liberated No heat change takes place ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most commonly used bleaching agent is Carbon dioxide Chlorine Sodium chloride Alcohol Carbon dioxide Chlorine Sodium chloride Alcohol ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS