Chemistry In a reaction of the type A+B ? C+D one could ensure it to be a first order reaction by : Increasing the concentration of a product Increasing the temperature Increasing the concentration of a reactant Adding a catalyst Increasing the concentration of a product Increasing the temperature Increasing the concentration of a reactant Adding a catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of ozone layer is due to Ethane Chloro fluoro carbon Sulphur dioxide Carbon dioxide Ethane Chloro fluoro carbon Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful Solar ultraviolet radiation CO2 in the air SO2 in the air Solar infrared radiation Solar ultraviolet radiation CO2 in the air SO2 in the air Solar infrared radiation ANSWER DOWNLOAD EXAMIANS APP
Chemistry In arc welding, Argon is used because of its 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 High calorific value High flammability ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soldering of two metals is possible because of the property of : Surface tension Viscosity Cohesion Osmosis Surface tension Viscosity Cohesion Osmosis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highly toxic gas which causes headache, visual difficulty, paralysis and even death is CO2 All of these CO O3 CO2 All of these CO O3 ANSWER DOWNLOAD EXAMIANS APP
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