The polar ice-caps are made of ____________ water
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Which amongst the following is not a Cation?
In Mendeleev's periodic table, the properties of the elements are considered a periodic function of their:
The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.
Removal of carbon particles from air involves the principle of
Which of the following elements has the lowest melting point?
Tooth decay starts when the pH of the mouth is lower than
Which process forms exfoliation domes?