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The electeonegativity of nitrogen and clorine is almost the same, yet chlorine does not form hydrogen bond whereas nitrogen does

The electeonegativity of nitrogen and clorine is almost the same, yet chlorine does not form hydrogen bond whereas nitrogen does 

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Grade:12th pass

2 Answers

ROSHAN MUJEEB
askIITians Faculty 833 Points
3 years ago
HelloStudent
Chlorine has an electronegativity of 3.16 on Pauling scale but the size of the chlorine atom is large (Van der Waals radius of chlorine is 175 pm) as a result it cannot strong hydrogen bond with smaller sized hydrogen(120 pm) but the size of nitrogen is comparatively (155 pm) thus it can form a strong hydrogen bond.(electronegativity 3.04)

Ayesha Mallick
17 Points
3 years ago
If we consider between cl and N , Cl is bigger in size than that of N. That's why Cl can't make bond with H effectively. It will be an ionic bond. Cl has the 3p orbital and H has the 1s orbital. Besides N has 2p shell. So comparatively N can bond with H strongly. 

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