Chemistry The percentage of oxygen in air is approximately 0.78 0.21 1 0.01 0.78 0.21 1 0.01 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A thick paste of cement, sand and water is called Kiln R.C.C. Mortar Concrete Kiln R.C.C. Mortar Concrete ANSWER DOWNLOAD EXAMIANS APP
Chemistry Lead in water can cause Kidney damage Eye disease Arthritis Hair falling Kidney damage Eye disease Arthritis Hair falling ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of CO CO2 SO2 Unburnt petrol CO CO2 SO2 Unburnt petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Quartz is a crystalline form of Silica Glass Limestone Alumina Silica Glass Limestone Alumina ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as a/an Fertiliser Disinfectant Pesticide Insecticide Fertiliser Disinfectant Pesticide Insecticide ANSWER DOWNLOAD EXAMIANS APP
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