
If the electron pair forming a bond between two atoms A and B is not in the centre, then the bond is
A. Sigma bond
B. Polar Covalent bond
C. Non-polar bond
D. Pi bond
Answer
163.2k+ views
Hint: To answer this question, first we must know about the bond. A bond is formed between the atoms when the electrons are shared between them. There are many types of bond formed between the atoms. After knowing the type of bonds, we are able to choose the correct option.
Complete Step by Step Solution:
A single bond is made when a pair of electrons are distributed between two atoms. This bond type is comparatively weak and has a smaller electron density than a double bond and a triple bond, but is the most stable because it has a lower reactivity level.
Polar covalent bonds formed between two nonmetal atoms have different electronegativities. Non-polar covalent bond is a type of chemical bond that is made when electrons are shared equally between two atoms. The covalent bond is also termed as nonpolar because the difference in electronegativity is mostly negligible.
Pi bonds are chemical bonds that are covalent in nature and involve the overlapping of two lobes of an atomic orbital with two lobes of another atomic orbital that belongs to a different atom.
If the electron pair which forms a bond between two atoms A and B is in the centre, then the bond is nonpolar covalent bond. Then the bond pair of electrons is distributed equally between two atoms.If the electron pair which forms a bond between two atoms A and B is not in the centre, then the bond formed is polar covalent bond. Here, the bond pair of electrons is not equally distributed between two atoms. It starts moving towards more electronegative atoms.
Thus, Option (B) is correct.
Note: Students must know the difference between the bonds to give the correct answer. As in both polar and non- polar bond electrons are shared but the difference exists in electronegativity.
Complete Step by Step Solution:
A single bond is made when a pair of electrons are distributed between two atoms. This bond type is comparatively weak and has a smaller electron density than a double bond and a triple bond, but is the most stable because it has a lower reactivity level.
Polar covalent bonds formed between two nonmetal atoms have different electronegativities. Non-polar covalent bond is a type of chemical bond that is made when electrons are shared equally between two atoms. The covalent bond is also termed as nonpolar because the difference in electronegativity is mostly negligible.
Pi bonds are chemical bonds that are covalent in nature and involve the overlapping of two lobes of an atomic orbital with two lobes of another atomic orbital that belongs to a different atom.
If the electron pair which forms a bond between two atoms A and B is in the centre, then the bond is nonpolar covalent bond. Then the bond pair of electrons is distributed equally between two atoms.If the electron pair which forms a bond between two atoms A and B is not in the centre, then the bond formed is polar covalent bond. Here, the bond pair of electrons is not equally distributed between two atoms. It starts moving towards more electronegative atoms.
Thus, Option (B) is correct.
Note: Students must know the difference between the bonds to give the correct answer. As in both polar and non- polar bond electrons are shared but the difference exists in electronegativity.
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