Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Acidity Hardness Eutrophication Alkalinity Acidity Hardness Eutrophication Alkalinity ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Magnesium Phosphorous Silicon Sulphur Magnesium Phosphorous Silicon Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High bond dissociation energy High nuclear charge Stable half filled 2p sub level Smaller atomic radius High bond dissociation energy High nuclear charge Stable half filled 2p sub level Smaller atomic radius ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ethylene is a ________ molecule. Nonpolar Covalent Polar Ionic Nonpolar Covalent Polar Ionic ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Neoprene is prepared by polymerisation of which of the following 2-methyl 1, 3-butadiene Acrylonitrile 2-chloro-1, 3-butadiene 1,3-butadiene 2-methyl 1, 3-butadiene Acrylonitrile 2-chloro-1, 3-butadiene 1,3-butadiene ANSWER DOWNLOAD EXAMIANS APP
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