The major constituent of air is
nitrogen
carbon dioxide
oxygen
hydrogen
Additional Questions
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The main chemical constituent of clay is |
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The mineral containing both magnesium and calcium is |
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The metal does not give H2 on treatment with dilute HCL is |
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The number of g-molecule of oxygen in 6.02 x 1024CO molecules is |
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The most extensive, commercially useful source of thorium as monazite sand occurs in India at |
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The main active constituent of tea and coffee is |
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The maximum number of isomers for an alkene with molecular formula C4H8 is |
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The hardest form of carbon is |
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The most important ore of aluminium is |
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The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of |
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