Q42. Among the following the correct statement is
A. Between NH3 and PH3, NH3 is a better electron d

Q: What is the correct answer for CUET UG Chemistry Q42?

The correct answer is B. In NH3, the lone pair on nitrogen is in an sp3 hybridized orbital, which is directional. Nitrogen is also smaller and more electronegative than phosphorus, leading to a more concentrated and available lone pair for donation compared to PH3. In PH3, the lone pair has more 's' character (less directional) and is more diffuse due to the larger size of phosphorus, making PH3 a weaker electron donor (L

Q: Q42. Among the following the correct statement is A. Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupy spherical 's' orbital and is less directional. B.…

The correct answer is B. In NH3, the lone pair on nitrogen is in an sp3 hybridized orbital, which is directional. Nitrogen is also smaller and more electronegative than phosphorus, leading to a more concentrated and available lone pair for donation compared to PH3. In PH3, the lone pair has more 's' character (less directional) and is more diffuse due to the larger size of phosphorus, making PH3 a weaker electron donor (L

Q: What are the options for this CUET UG Chemistry question?

A. A only · B. B only · C. C only · D. D only

Question

Q42. Among the following the correct statement is
A. Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupy spherical 's' orbital and is less directional.
B. Between NH3 and PH3, NH3 is a better electron donor because the lone pair of electrons occupies sp³ orbital and is more directional.
C. Between NH3 & PH3, PH3 is a better electron donor because the lone pair of electrons occupies sp³ orbital and is more directional.
D. Between NH3 & PH3, PH3 is a better electron donor because the lone pair of electrons occupies 's' orbital and is less directional.
Choose the most appropriate answer from the options given below:
(a) A only
(b) B only
(c) C only
(d) D only

FirstInTest · Accepted Answer

In NH3, the lone pair on nitrogen is in an sp3 hybridized orbital, which is directional. Nitrogen is also smaller and more electronegative than phosphorus, leading to a more concentrated and available lone pair for donation compared to PH3. In PH3, the lone pair has more 's' character (less directional) and is more diffuse due to the larger size of phosphorus, making PH3 a weaker electron donor (Lewis base) than NH3.

Answer

A only

Answer

B only

Answer

C only

Answer

D only

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