Chemistry Nitrogen is an essential constituent of all : Proteins Fats Vitamins Carbohydrates Proteins Fats Vitamins Carbohydrates 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 Emission spectra Absorption spectra Fluorescence Raman spectra Emission spectra Absorption spectra Fluorescence Raman spectra ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 53 19 36 17 53 19 36 17 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More abundant than hydrogen More stable Lighter than hydrogen Non-combustible More abundant than hydrogen More stable Lighter than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Alfred Nobel Faraday Volta Bohr and Rutherford Alfred Nobel Faraday Volta Bohr and Rutherford ANSWER DOWNLOAD EXAMIANS APP
Chemistry The fundamental particles present in the nucleus of an atom are Neutron, electron Neutron, positron Proton, neutron Electron, proton Neutron, electron Neutron, positron Proton, neutron Electron, proton ANSWER DOWNLOAD EXAMIANS APP
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