Chemistry Conduction band electrons have more mobility than holes because they Are lighter Experience collision less frequently Have negative charge Need less energy to move them Are lighter Experience collision less frequently Have negative charge Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Oxygen Carbon dioxide All of them Hydrogen Oxygen Carbon dioxide All of them Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of waves in n x 10th Bohr's orbit are n-2 n n3 n2 n-2 n n3 n2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hardest form of carbon is charcoal coke diamond graphite charcoal coke diamond graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of CO2 SO2 CO Unburnt petrol CO2 SO2 CO Unburnt petrol ANSWER DOWNLOAD EXAMIANS APP
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