Chemistry The hardest form of carbon is graphite diamond coke charcoal graphite diamond coke charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Ethylene glycol Formaldehyde in methanol Formaldehyde in water Gaseous formaldehyde Ethylene glycol Formaldehyde in methanol Formaldehyde in water Gaseous formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Carbon dioxide Methane Carbon monoxide Nitrous oxide and sulphur dioxide Carbon dioxide Methane Carbon monoxide Nitrous oxide and sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Tetrahedral structure of diamond Difference of crystalline structures Difference in layers of atoms None of these Tetrahedral structure of diamond Difference of crystalline structures Difference in layers of atoms None of these 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 CO2 SO2 CO Unburnt petrol CO2 SO2 CO Unburnt petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Carbon dioxide Oxygen Helium Carbon monoxide Carbon dioxide Oxygen Helium Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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