Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Krypton Argon Oxygen Nitrogen Krypton Argon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Ozone and Carbon dioxide Carbon dioxide and Nitrogen Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Ozone and Carbon dioxide Carbon dioxide and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Hydrogen peroxide Ozone Barium peroxide Sodium peroxide Hydrogen peroxide Ozone Barium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is most electronegative Carbon Lead Tin Silicon Carbon Lead Tin Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a pure form of carbon Coal Graphite Gold Diamond Coal Graphite Gold Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry The water pollution in river is measured by the dissolved amount of Oxygen Nitrogen Ozone Chlorine Oxygen Nitrogen Ozone Chlorine ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS