Chemistry Copper is refined by Oxidation Roasting Electrolysis Zone refining Oxidation Roasting Electrolysis Zone refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of gas constant R in Ergs deg–1 mole–1 is 4.183 × 107 8.314 × 107 8.413 × 107 8.341 × 107 4.183 × 107 8.314 × 107 8.413 × 107 8.341 × 107 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gobar gas contains mainly : Propylene Ethylene Acetylene Methane Propylene Ethylene Acetylene Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Carbon dioxide Nitrous oxide Methane Chlorofluorocarbons Carbon dioxide Nitrous oxide Methane Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Suspension particles have the size between 10–1 – 10–2 cm 10–5 – 10–7cm 10–8 – 10–10cm 10–2 – 10–4 cm 10–1 – 10–2 cm 10–5 – 10–7cm 10–8 – 10–10cm 10–2 – 10–4 cm ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum The low ionisation energy of sodium sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS