Question 4.18 Explain with the help of suitable example polar covalent bond.
Class XI Chemical Bonding and Molecular Structure Page 130
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polar means charge. hence, polar covalent compound means the compound formed by two or more atoms of different electronegative.
for example, HF ( it is heteronuclear molecule ). the shared pair of electrons between the two atoms gets displaced more towards the high electronegative atom, fluorine.
+δ -δ
H--------F
As a result of that , hydrogen atoms becomes slightly positively charged and fluorine becomes slightly negatively charged like above shown .
this type of bond is called polar covalent bond.
for example, HF ( it is heteronuclear molecule ). the shared pair of electrons between the two atoms gets displaced more towards the high electronegative atom, fluorine.
+δ -δ
H--------F
As a result of that , hydrogen atoms becomes slightly positively charged and fluorine becomes slightly negatively charged like above shown .
this type of bond is called polar covalent bond.
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