Chemistry The presence of ozone in the stratosphere is responsible for Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Copper Aluminium Silver Zinc Copper Aluminium Silver Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which colour is produce by Arsenic during flame test Green Red Crimson Blue Green Red Crimson Blue ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.305 0.658 0.727 0.509 0.305 0.658 0.727 0.509 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The structure of (HPO3)3 is Linear Tetrahedral Cyclic Octahedral Linear Tetrahedral Cyclic Octahedral ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contains maximum percentage of carbon ? High speed steel Cast iron Stainless steel Wrought iron High speed steel Cast iron Stainless steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
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