Chemistry Periodic table contains how many groups 17 16 19 18 17 16 19 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium sulphate Calcium borate Calcium chloride Calcium phosphate Calcium sulphate Calcium borate Calcium chloride Calcium phosphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Violet phosphorus Red phosphorus White phosphorus Black phosphorus Violet phosphorus Red phosphorus White phosphorus Black phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound to which H2 does not add is Tetraphenyl ethylene Biphenyl ethylene Tetra – a –naphthylethylene Tetra –9 – phenanthrylethylene Tetraphenyl ethylene Biphenyl ethylene Tetra – a –naphthylethylene Tetra –9 – phenanthrylethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Aluminium Copper Tin Iron Aluminium Copper Tin Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Diesel Coal Hydrogen Kerosene Diesel Coal Hydrogen Kerosene ANSWER DOWNLOAD EXAMIANS APP