Chemistry In arc welding, Argon is used because of its Low reactivity with metal High flammability High calorific value Ability to lower the melting point of the metal Low reactivity with metal High flammability High calorific value Ability to lower the melting point of the metal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a primary greenhouse gases in the Earth's atmosphere Ozone Methane Nitrogen Carbon dioxide Ozone Methane Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Greenhouse effect is caused by Carbon dioxide Nitrogen Carbon monoxide Nitrogen dioxide Carbon dioxide Nitrogen Carbon monoxide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is absorbed Heat is liberated Temperature decreases No heat change takes place Heat is absorbed Heat is liberated Temperature decreases No heat change takes place ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer O 2 layer CO2 layer SO2 layer O3 layer O 2 layer CO2 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
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