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adding sodium carbonate
distillation
adding caustic soda
boiling
The mineral containing both magnesium and calcium is
The molecular formula of phosphorous is
The molecule which has the highest percentage of ionic character among the following is
The molecules of which gas have highest speed?
The monomer of polythene is
The most abundant constituent of atmospheric air is :
The most abundant element is
The most abundant inert gas in the atmosphere is
The most abundant rare gas in the atmosphere is
The most common cause of pollution of air is