Chemistry The chemical name of 'laughing gas' is Nitrogen pentoxide Nitrogen dioxide Nitric oxide Nitrous oxide Nitrogen pentoxide Nitrogen dioxide Nitric oxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Chlorofluorocarbons Volcanic eruptions Aviation fuels Radioactive rays Chlorofluorocarbons Volcanic eruptions Aviation fuels Radioactive rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry The inexpensive and commonly used variety of glass is called soda glass. is made using soda lime was used initially for making bottles of soda(carbonated drink) was initially used for storing sodium carbonate is made using soda(sodium carbonate) is made using soda lime was used initially for making bottles of soda(carbonated drink) was initially used for storing sodium carbonate is made using soda(sodium carbonate) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CFC CO SO2 CO2 CFC CO SO2 CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electronegative element among the following is sodium oxygen fluorine bromine sodium oxygen fluorine bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth ANSWER DOWNLOAD EXAMIANS APP
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