Chemistry The pollutant responsible for ozone holes is ________ CFC CO CO2 SO2 CFC CO CO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry In ice, the number of hydrogen bonds per water molecule is 1 4 8 2 1 4 8 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air is said to be saturated when : It contains maximum content of water vapour Its pressure is minimum Its thickness is maximum It blows over the barren land It contains maximum content of water vapour Its pressure is minimum Its thickness is maximum It blows over the barren land ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has least negative electron gain enthalpy S P Cl F S P Cl F ANSWER DOWNLOAD EXAMIANS APP
Chemistry The electronic configuration of an atom having atomic number ‘20’ is 2, 8, 8, 2 2, 8, 10 2, 10, 8 2, 6, 8, 4 2, 8, 8, 2 2, 8, 10 2, 10, 8 2, 6, 8, 4 ANSWER DOWNLOAD EXAMIANS APP
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