Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Galvanization Vulcanization Alloy formation Zinc plating Galvanization Vulcanization Alloy formation Zinc plating ANSWER DOWNLOAD EXAMIANS APP
Chemistry Organic compounds are Ionic compounds Covalent compounds Co-ordination compounds Interstitial compounds Ionic compounds Covalent compounds Co-ordination compounds Interstitial compounds 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 Which of the following is not a method of preparing oxygen? Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver, an alloy, does not contain the metal Nickel Copper Zinc Silver Nickel Copper Zinc Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is added to aviation gasoline because it Increases efficiency of petrol Prevents freezing of petrol Reduces evaporation of petrol Reduces consumption of petrol Increases efficiency of petrol Prevents freezing of petrol Reduces evaporation of petrol Reduces consumption of petrol ANSWER DOWNLOAD EXAMIANS APP
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