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Fe2O3
Fe3OH4
FeCO3
3Fe2O3 .3H2O
The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is
The isotopes of chlorine with mass number 35 and 37 exist in the ratio of
The items amenable to detection by soft x-rays are
The largest component of Coal gas is_?
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
The liquid waste from kitchens and baths, of residences is known as :
The luster of a metal is due to
The M.K.S. system was first introduced by
The main chemical constituent of clay is
The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is