Chemistry Sodium vapour lamps glow with yellow colour. This is due to Its ability to absorb all other colours except yellow The low ionisation energy of sodium The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour Its ability to absorb all other colours except yellow The low ionisation energy of sodium The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element from below list is liquid at room temperature Zinc Argon Bromine Lead Zinc Argon Bromine Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the main nitrogenous waste in humans ? Ammonium Nitrate Ammonia Uric Acid Urea Ammonium Nitrate Ammonia Uric Acid Urea ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as filler in tyre of rubber ? Graphite Carbon black Coke Coal Graphite Carbon black Coke Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon di-oxide Ethane Carbon monoxide Methane Carbon di-oxide Ethane Carbon monoxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 5 and 10 km 20 and 50 km 10 and 20 km 50 and 100 km 5 and 10 km 20 and 50 km 10 and 20 km 50 and 100 km ANSWER DOWNLOAD EXAMIANS APP
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