In which of the following compounds a polar covalent bond is existed

H_{2}

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C l_{2}

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F_{2}

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HCl

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Solution

The correct options are
B HCl
C $H_{2}$
HCl is having polar covalent bond in between H and Cl.In all the other options the bond present between the atoms is non polar covelent bond as the bond formed between them is between same atom where as the bond fromed between H and Cl are atoms of different elements.
A non polar covalent bond is formed between Homo atoms
A polar covalent bond is formed between hetero atoms.
Hence option D is correct

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What is the reason for the formation of polar covalent bond in HCl?

O - O

H_{2} O_{2}

O_{2} F_{2}

H_{2} O_{2}

Among the following compounds, polar covalent bond is present in:

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