Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is 6.023 × 1023 '6.023 × 10–20 '6.023 × 10–23 6.023 × 1020 6.023 × 1023 '6.023 × 10–20 '6.023 × 10–23 6.023 × 1020 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? Photochemical smog NO2 SO2 Dust particles Photochemical smog NO2 SO2 Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry When there are two electrons in the same orbital, they have: Same spin Opposite spin Same or opposite spin No spin Same spin Opposite spin Same or opposite spin No spin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Sulphur dioxide Chlorofluorocarbons Nitrous oxide Carbon dioxide Sulphur dioxide Chlorofluorocarbons Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A fertile soil is likely to have a pH of 14 9 3 43989 14 9 3 43989 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is oxygen methane helium ozone oxygen methane helium ozone ANSWER DOWNLOAD EXAMIANS APP
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