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In which of the following cases is a polar covalent bond formed?


A) when an electron is transferred from one atom to another
B) when the electrons of a bond are shared equally by the two atoms
C) when the electrons of a bond are shared unequally by the two atoms
D) when a metallic element forms a bond with a non-metallic element

E) C) and D)
F) All of the above

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Strontium forms an anion by losing two electrons.

A) True
B) False

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