Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Ozone Hydrogen peroxide Barium peroxide Sodium peroxide Ozone Hydrogen peroxide Barium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone consists of Oxygen and Nitrogen Oxygen and Carbon Oxygen only Hydrogen and Carbon Oxygen and Nitrogen Oxygen and Carbon Oxygen only Hydrogen and Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer is present in Exosphere Ionosphere Troposphere Stratosphere Exosphere Ionosphere Troposphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for 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 Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major use of sulphur is in the manufacture of SO2 Fungicide H2SO4 H2S SO2 Fungicide H2SO4 H2S ANSWER DOWNLOAD EXAMIANS APP
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