Chemistry Which of the following laser types is used in a laser printer? Excimer laser Dye laser Semiconductor laser Gas laser Excimer laser Dye laser Semiconductor laser Gas laser ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Nitrous oxide Sulphur dioxide Carbon dioxide Hydrocarbons Nitrous oxide Sulphur dioxide Carbon dioxide Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Has no action on the rate of the reaction None of these Decreases the rate of reaction Increases the rate of the reaction Has no action on the rate of the reaction None of these Decreases the rate of reaction Increases the rate of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound used in pricklyheat powder to prevent excessive sweating is Carbonic acid Boric acid Phosphoric acid Sulphuric acid Carbonic acid Boric acid Phosphoric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Neon Nitrogen Sodium Hydrogen Neon Nitrogen Sodium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry When there are two electrons in the same orbital, they have: Same or opposite spin No spin Opposite spin Same spin Same or opposite spin No spin Opposite spin Same spin ANSWER DOWNLOAD EXAMIANS APP
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