Chemistry Dry ice is the solid form of : Water Nitrogen Carbon di–oxide Air Water Nitrogen Carbon di–oxide Air 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 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 Supplying oxygen for people travelling in jets ANSWER DOWNLOAD EXAMIANS APP
Chemistry Asbestos is formed of : Calcium and Zinc Calcium and Magnesium Copper, Zinc and Manganese Lead and Iron Calcium and Zinc Calcium and Magnesium Copper, Zinc and Manganese Lead and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is extracted from Bauxite Cinnabar Dolomite Haematite Bauxite Cinnabar Dolomite Haematite ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Double nitrate Double sulphates Nitrates of aluminium Hydrated chlorides Double nitrate Double sulphates Nitrates of aluminium Hydrated chlorides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas is : Carbonyl chloride Nitrous oxide Chloroprene Bleaching powder Carbonyl chloride Nitrous oxide Chloroprene Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
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