Chemistry Conduction band electrons have more mobility than holes because they Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 7.2 x x/6 5x 5x/36 7.2 x x/6 5x 5x/36 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide Carbon monoxide and Carbon dioxide Ozone and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide Carbon monoxide and Carbon dioxide Ozone and Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is All of them Hydrogen Oxygen Carbon dioxide All of them Hydrogen Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in developing photographic films is Sodium sulphate Hydroquinone Silver bromide Hypo Sodium sulphate Hydroquinone Silver bromide Hypo ANSWER DOWNLOAD EXAMIANS APP
Chemistry The filter over which sewage is sprinkled is called as Percolating filter Trickling filter Contact bed Intermittent sand filter Percolating filter Trickling filter Contact bed Intermittent sand filter ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS