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The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of
The oxidation number of nickel in K4 [Ni(CN)4] is
The particle with 13 protons and 10 electrons is
The percentage of carbon in cost iron is:
The percentage of Nitrogen in Air is
The percentage of nitrogen present in ammonium sulphate is:
The percentage of oxygen in air is approximately
The pH of human blood is between:
The pH of lemon juice is expected to be
The pollutant responsible for ozone holes is _