Chemistry Which of the following is used to remove rust stains on cloth? Petrol Lime Kerosene Oxalic acid solution Petrol Lime Kerosene Oxalic acid solution ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer is present in Exosphere Stratosphere Troposphere Ionosphere Exosphere Stratosphere Troposphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bakelite is a co-polymer of Phenol and Acetaldehyde Benzaldehyde Cinnaldehyde Formaldehyde Acetaldehyde Benzaldehyde Cinnaldehyde Formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aqua regia is a 1 : 3 mixture, by volume, of 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 Conc. sulphuric acid and conc. nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals occurs in free state ? Zinc Lead Iron Copper Zinc Lead Iron Copper ANSWER DOWNLOAD EXAMIANS APP
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