Chemistry The most abundant element by number in the living system is : Hydrogen Carbon Nitrogen Oxygen Hydrogen Carbon Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s wool is chemically Magnesium oxide Calcium oxide Aluminium oxide Zinc oxide Magnesium oxide Calcium oxide Aluminium oxide Zinc oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Reduction Corrosion Sublimation Galvanisation Reduction Corrosion Sublimation Galvanisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nucleus of an atom consists of. Electron, Proton and Neutron Proton Neutron Proton and Neutron Electron, Proton and Neutron Proton Neutron Proton and Neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of same element having different mass numbers are called________ Isotones Isotopes Isomers Isobars Isotones Isotopes Isomers Isobars ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following coal contains 90 per cent of carbon? Peat Anthracite Bitumen Lignite Peat Anthracite Bitumen Lignite ANSWER DOWNLOAD EXAMIANS APP
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