Chemistry An acid having basicity one is Sodium phosphate Phosphoric acid Disodium hydrogen phosphate Sodium dihydrogen phosphate Sodium phosphate Phosphoric acid Disodium hydrogen phosphate Sodium dihydrogen phosphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Iron and cadmium Lead peroxide and lead Nickel and cadmium Zinc and carbon Iron and cadmium Lead peroxide and lead Nickel and cadmium Zinc and carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Asbestos is formed of : Calcium and Magnesium Copper, Zinc and Manganese Calcium and Zinc Lead and Iron Calcium and Magnesium Copper, Zinc and Manganese Calcium and Zinc Lead and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is less reactive than tin Zinc has a higher melting point than tin Zinc is costlier than tin Zinc is more reactive than tin Zinc is less reactive than tin Zinc has a higher melting point than tin Zinc is costlier than tin Zinc is more reactive than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry In deep-sea diving, divers use a mixture of gases consisting of oxygen and Hydrogen Argon Helium Nitrogen Hydrogen Argon Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of common salt is Sodium Oxide Sodium Chloride Sodium Bicarbonate Sodium Sodium Oxide Sodium Chloride Sodium Bicarbonate Sodium ANSWER DOWNLOAD EXAMIANS APP
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