Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Phosphorus-31 Carbon-14 Tritium Radium Phosphorus-31 Carbon-14 Tritium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in Absorption spectra Emission spectra Raman spectra Fluorescence Absorption spectra Emission spectra Raman spectra Fluorescence ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which is secreted by the glands in the stomach wall is Nitric acid Hydrochloric acid Sulphuric acid Phosphoric acid Nitric acid Hydrochloric acid Sulphuric acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following methods is used in determining the number average molar mass of a macromolecule Sedimentation equilibrium Light scattering Osmotic pressure Viscosity Sedimentation equilibrium Light scattering Osmotic pressure Viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in dating archaeological findings ? 13H 92235U 614C 818O 13H 92235U 614C 818O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The fiber least prone to catch fire is Nylon Polyester Cotton Terylene Nylon Polyester Cotton Terylene ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS