Chemistry Spontaneous change is one in there is: An increase in Internal energy A lowering of free energy A lowering of entropy Increase in free energy An increase in Internal energy A lowering of free energy A lowering of entropy Increase in free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Threshold limit value of copper in the atmospheric air is 1.0 mg/m3 5.0 mg/m3 0.001 mg/m3 0.01 mg/m3 1.0 mg/m3 5.0 mg/m3 0.001 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has pH value 7? Sodium Carbonate H2SO4 Pure Water HCl Sodium Carbonate H2SO4 Pure Water HCl ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as promoter for iron in Haber's process Mg Mn W Mo Mg Mn W Mo ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aqua regia is a 1 : 3 mixture, by volume, of 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 Conc. sulphuric acid and conc. nitric acid ANSWER DOWNLOAD EXAMIANS APP
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