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The most extensive, commercially useful source of thorium as monazite sand occurs in India at
The most inexpensive and commonly used variety of glass is called soda glass. It is called so because it
The most malleable metal is
The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
The National Chemical Laboratory is situated in
The next higher homologue of C6H14 is
The nitrogen atom has 7 protons and 7 electrons,The nitride ion will have
The noble gas used in radiotherapy is
The non-metal found in the liquid state is
The nuclear particles which are assumed to hold the nucleons together are