Chemistry The most abundant element by number in the living system is : Nitrogen Oxygen Carbon Hydrogen Nitrogen Oxygen Carbon Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The resources which can be used continuously, year-after -year are called Renewable Biotic Non-renewable Abiotic Renewable Biotic Non-renewable Abiotic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleons are regarded as composites sub-particles known as Leptons Photons Mesons Quarks Leptons Photons Mesons Quarks ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Lamp black Diamond Coke Graphite Lamp black Diamond Coke Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gold dissolves in Aqua-regia Hydrochloric acid Acetic acid Nitric acid Aqua-regia Hydrochloric acid Acetic acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Water vapour Carbon monoxide Carbon dioxide Ozone Water vapour Carbon monoxide Carbon dioxide Ozone ANSWER DOWNLOAD EXAMIANS APP