Chemistry Sulphur dioxide bleaches colouring matter by : Dehydration Reduction Oxidation Decomposition Dehydration Reduction Oxidation Decomposition ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is made of Copper, tin and zinc Copper and zinc Tin and lead Copper and tin Copper, tin and zinc Copper and zinc Tin and lead Copper and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Krypton Xenon Argon Helium Krypton Xenon Argon Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Nucleus in atoms Electrons in atoms Atoms in all matter Neutrons in atoms Nucleus in atoms Electrons in atoms Atoms in all matter Neutrons in atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Wrought iron Steel Pig iron Cast iron Wrought iron Steel Pig iron Cast iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo chemical smog is a resultant of the reaction among CO, CO2 and NO2at low temperature CO, O2 and peroxy acetyl nitrate in the presence of Sunlight High concentration of NO2, O3, and CO in the evening NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature CO, O2 and peroxy acetyl nitrate in the presence of Sunlight High concentration of NO2, O3, and CO in the evening NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight ANSWER DOWNLOAD EXAMIANS APP
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