Chemistry Conduction band electrons have more mobility than holes because they Are lighter Experience collision less frequently Need less energy to move them Have negative charge Are lighter Experience collision less frequently Need less energy to move them Have negative charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is a Element Compound Heterogeneous mixture Homogeneous mixture Element Compound Heterogeneous mixture Homogeneous mixture ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard steel contains 2 to 5 per cent carbon 0.5 to 1.5 per cent carbon 0.01 to 0.04 per cent carbon 0.1 to 0.4 per cent carbon 2 to 5 per cent carbon 0.5 to 1.5 per cent carbon 0.01 to 0.04 per cent carbon 0.1 to 0.4 per cent carbon 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 Fluorescence Emission spectra Raman spectra Absorption spectra Fluorescence Emission spectra Raman spectra ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aluminium chloride is Bronsted Lowry Acid Lewis Base Lewis Acid Arrhenius Acid Bronsted Lowry Acid Lewis Base Lewis Acid Arrhenius Acid ANSWER DOWNLOAD EXAMIANS APP
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