Q. Among the following the correct statement is:
1. Between NHand PH3, NH3 is better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional
2. Between NH3and PH3, PH3 is better electron donor because the lone pair of electrons occupies sp3 orbital and is more directional
3. Between NH3 and PH3, NH3 is better electron donor because the lone pair of electrons occupies sp3 orbital and is more directional
4. Between NH3 and PH3, PH3 is better electron donor because the lone pair of electrons occupies spherical 's' orbital and is less directional

Dear Student

A base donates electrons to another compound.Typical reducing agents undergo permanent chemical alteration through ionic reaction or covalent chemistry. This results in the complete and irreversible transfer of electrons (one or more ). The transfer of electronic charge to an electron acceptor may be only fractional, meaning an electron is not completely transferred but results in an electron resonance between the donor and acceptor. This leads to the formation of charge transfer complexes in which the components largely retain their chemical identities.More directional means that pair of the electrons has more likely to the formation of charge transfer complexes. Also, NH3 is smaller in size so the lone pair of electrons is readily available to donate.

Option 3 is correct.

Regards

 

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