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0.2:
The bond angles of H20 and NH3 are not 109.5" like that of CH4, although O and N
atoms are sp hybridized is like carbon. Give reason.​

Sagot :

Answer: due to bond pair - lone pair and lone pair -lone pair repulsion

Explanation:

In [tex]NH_3[/tex], nitrogen is the central atom and there are 3 Hydrogens as monovalent atoms.  The number of electron pairs is 4 that means the hybridization will be [tex]sp^3[/tex] and geometry of the molecule will be pyramidal as there are three bond pairs and one lone pair.The bond angle for pyramidal geometry is 107°. The bond angle reduces due to lone pair bond pair repulsions.

 In [tex]H_2O[/tex], oxygen is the central atom and there are 2 Hydrogens as monovalent atoms. The number of electron pairs is 4 that means the hybridization will be [tex]sp^3[/tex] and geometry of the molecule will be bent as there are two bond pairs and two lone pairs.The bond angle for pyramidal geometry is 104.5°.The bond angle reduces further due to greater lone pair-lone pair repulsions.

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