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 Increasing the average global temperature in recent years Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Higher rate of photosynthesis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compounds formed when hydrogen combines with p-block elements are called Metallic hydrides Molecular hydrides Ionic hydrides Polynuclear hydrides Metallic hydrides Molecular hydrides Ionic hydrides Polynuclear hydrides ANSWER DOWNLOAD EXAMIANS APP
Chemistry The anode of a dry cell is made up of Zinc Cadmium Lead Iron Zinc Cadmium Lead Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Bohr and Rutherford Faraday Volta Alfred Nobel Bohr and Rutherford Faraday Volta Alfred Nobel ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Aluminium Zinc Copper Silver Aluminium Zinc Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry A solution is A solid dissolved in a liquid A homogeneous mixture of two or more substances A mixture of two liquids A solid dissolved i water A solid dissolved in a liquid A homogeneous mixture of two or more substances A mixture of two liquids A solid dissolved i water ANSWER DOWNLOAD EXAMIANS APP
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