Chemistry In arc welding, Argon is used because of its High calorific value High flammability Low reactivity with metal Ability to lower the melting point of the metal High calorific value High flammability Low reactivity with metal Ability to lower the melting point of the metal ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of Unburnt petrol CO2 CO SO2 Unburnt petrol CO2 CO SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a natural source of hydrocarbon? Natural Gas Petroleum Mica Coal Natural Gas Petroleum Mica Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Corrosion Reduction Galvanisation Sublimation Corrosion Reduction Galvanisation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant inert gas in the atmosphere is Neon Helium Argon Krypton Neon Helium Argon Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Persons working in cement plants and lime stone quarries are prone to disease like Pneumoconiosis Cancer Silicosis Asthma Pneumoconiosis Cancer Silicosis Asthma ANSWER DOWNLOAD EXAMIANS APP
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