Chemistry Supersonic jet causes pollution by thinning of CO2 layer O 2 layer SO2 layer O3 layer CO2 layer O 2 layer SO2 layer O3 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to recover copper from a solution of copper sulphate is Hg Fe Ag Na Hg Fe Ag Na ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Alkalinity Acidity Hardness Eutrophication Alkalinity Acidity Hardness Eutrophication ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has 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 High bond dissociation energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Argon Krypton Xenon Helium Argon Krypton Xenon Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 ANSWER DOWNLOAD EXAMIANS APP
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