Chemistry The addition of gypsum to portland cement helps in : Reduction in the cost of cement Increasing the strength of cement Preventing rapid setting of cement Rapid setting of cement Reduction in the cost of cement Increasing the strength of cement Preventing rapid setting of cement Rapid setting of cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in pure form? Bauxite Manganese Iron Copper Bauxite Manganese Iron Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry When water itself combines chemically with some element or mineral it is called Hydration Oxidation Carbonation Desilication Hydration Oxidation Carbonation Desilication ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Phosphine Sulphur dioxide Freon Chlorine Phosphine Sulphur dioxide Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is All of these Ethane Nitrogen Methane All of these Ethane Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
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 B and c A and c A and b C and d B and c A and c ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS