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2-methyl octane
n-heptane
iso-octane
3-methyl octane
The oil used in the froth floatation process is
The oldest rocks in the earths crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earths early life and solidified into hard rocks called
The ore which is found in abundance in India is
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