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 ozone oxygen helium methane ozone oxygen helium methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wood spirit is Methyl alcohol Propyl alcohol Ethyl alcohol Butyl alcohol Methyl alcohol Propyl alcohol Ethyl alcohol Butyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury oxide and neon Mercury vapour and argon Sodium oxide and argon Sodium vapour and neon Mercury oxide and neon Mercury vapour and argon Sodium oxide and argon Sodium vapour and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium A, B, C, D and E A and C A, C and E B, D and E A, B, C, D and E A and C A, C and E B, D and E ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of ozone layer is due to Sulphur dioxide Chloro fluoro carbon Ethane Carbon dioxide Sulphur dioxide Chloro fluoro carbon Ethane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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