ICSE Class 10 Chemistry Question 5 of 28

Chemical Bonding — Question 16

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Question

Question 15

Give two differences between the covalent compounds – methane (non-polar) and HCl (polar)

Answer
Methane (non-polar)
covalent compound
HCl (polar)
covalent compound
Covalent compounds are said to be non-polar when shared pair of electrons are equally distributed between the two atoms.Covalent compounds are said to be polar when shared pair of electrons are unequally distributed between the two atoms.
The covalent molecule is symmetrical and electrically neutral.The atom which attracts electrons more strongly develops a slight negative charge while the other develops a slight positive charge.