Chemistry The first metal used by a man was Bronze Silver Copper Brass Bronze Silver Copper Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HCl and conc. HNO3 Conc. HNO3 and conc. HCl Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HCl and conc. HNO3 Conc. HNO3 and conc. HCl ANSWER DOWNLOAD EXAMIANS APP
Chemistry The working of a dry cell is based on Decomposition reaction Spontaneous oxidation-reduction reaction Electrolysis Combination reaction Decomposition reaction Spontaneous oxidation-reduction reaction Electrolysis Combination reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Liquid Nitrogen boils at 54 kelvin 77 kelvin 82 Kelvin 97 Kelvin 54 kelvin 77 kelvin 82 Kelvin 97 Kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH value between 6.5-7.5 makes the soil Acidic Neutral Basic None of these Acidic Neutral Basic None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has pH value 7? H2SO4 Sodium Carbonate HCl Pure Water H2SO4 Sodium Carbonate HCl Pure Water ANSWER DOWNLOAD EXAMIANS APP
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