7.38 Why does NH₃ form hydrogen bond but PH3 does not? 

7.38 

The electronegativity of N (3.0) is higher than that of P (2.1). Due to this N-H bond is more polar than a

P-H bond. Also, P and H have the same electronegativity of 2.1 i.e., the P-H bond is non-polar. Therefore, PH₃ does not form hydrogen form.

The structure of NH₃ and PH₃ with their electronegativity is represented below.

<p><strong>7.38&nbsp;</strong></p><p>The electronegativity of N (3.0) is higher than that of P (2.1). Due to this N-H bond is more polar than a</p><p>P-H bond. Also, P and H have the same electronegativity of 2.1 i.e., the P-H bond is non-polar. Therefore, PH₃ does not form hydrogen form.</p><p>The structure of NH₃ and PH₃ with their electronegativity is represented below.</p><div><div><picture><source srcset="https://images.shiksha.com/mediadata/images/articles/1688025021php3HMZdY_480x360.jpeg" media=" (max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/articles/1688025021php3HMZdY.jpeg" alt="" width="401" height="124"></picture></div></div>

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