Chemistry Which among the following is used as a catalyst in the production of high octane fuels? HF HCl HNO3 H2SO4 HF HCl HNO3 H2SO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Copper Aluminium Tin Iron Copper Aluminium Tin Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Phosphorous Silicon Magnesium Sulphur Phosphorous Silicon Magnesium Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals has least melting point ? Mercury Copper Gold Silver Mercury Copper Gold Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Potassium Permangante Sodium carbonate Lime Alum Potassium Permangante Sodium carbonate Lime Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionic radii of N3-, O2-, F- and Na+ follows the order N3- > O2- > F- > Na+ O2- > F- > Na+ > N3- Na+ > O2- > N3- > F- N3- > Na+ > O2- > F- N3- > O2- > F- > Na+ O2- > F- > Na+ > N3- Na+ > O2- > N3- > F- N3- > Na+ > O2- > F- ANSWER DOWNLOAD EXAMIANS APP