Chemistry Aqua regia is a 1 : 3 mixture, by volume, of Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. nitric acid and conc. sulphuric acid Conc. hydrochloric acid and conc. nitric acid Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. nitric acid and conc. sulphuric acid Conc. hydrochloric acid and conc. nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is used in storage batteries? Tin Copper Lead Zinc Tin Copper Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver, an alloy, does not contain the metal Zinc Nickel Copper Silver Zinc Nickel Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pH of human blood is between : 6.5-7 7.5-8 4.5-5 44052 6.5-7 7.5-8 4.5-5 44052 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Formation of ozone hole is maximum over Antarctica Europe Africa India Antarctica Europe Africa India ANSWER DOWNLOAD EXAMIANS APP
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