Chemistry Who is known as the 'father of modern chemistry' Robert Boyle John Dalton Antoine Lavoisier Democritus Robert Boyle John Dalton Antoine Lavoisier Democritus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Aluminium Tin Copper Iron Aluminium Tin Copper Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest commercial form of iron ? Pig iron Steel Stainless steel Wrought iron Pig iron Steel Stainless steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum consists of a mixture of Carbonates Carbides Hydrocarbons Carbohydrates Carbonates Carbides Hydrocarbons Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry For a spontaneous chemical process, the free energy change is Zero Positive Depends on whether the reaction is exothermic or endothermic Negative Zero Positive Depends on whether the reaction is exothermic or endothermic Negative ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aqua regia is a 1 : 3 mixture, by volume, of Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. sulphuric acid Conc. hydrochloric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. sulphuric acid Conc. hydrochloric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
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