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Zinc is used to protect iron from corrsion because zinc is

Answer»

more electropositive than iron
CHEAPER than iron
a bluish white metal
a good conductor of heat and ELECTRICITY

SOLUTION :Alkali metals Caesium has lowest melting point . Caesium is a CHEMICAL element with symbol Cs and atomic number 55 . Alkali metals are very reactive , electropositive , monovalent metals forming strongly alkaline hydroxides.


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