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saikat banerjee Grade:
        

how is it that:


species like chlorine ion also take part in hydrogen bonding but chlorine atom cannot?

7 years ago

Answers : (2)

AJIT AskiitiansExpert-IITD
68 Points
										

Dear saikat ,


The mechanism of hydrogen bonding is that the more elctronegative ion polarises the hydrogen atom so much that the bond formed is of much stronger strength.in case of cl- electronegativity is high (its the capability to donate electrons) than cl atom . so cl atom cannot form hydrogen bonds.


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7 years ago
SAGAR SINGH - IIT DELHI
879 Points
										

Dear saikat,


Following are the reasons:





  • The hydrogen is attached directly to one of the most electronegative elements, causing the hydrogen to acquire a significant amount of positive charge.




  • Each of the elements to which the hydrogen is attached is not only significantly negative, but also has at least one "active" lone pair.


    Lone pairs at the 2-level have the electrons contained in a relatively small volume of space which therefore has a high density of negative charge. Lone pairs at higher levels are more diffuse and not so attractive to positive things.









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7 years ago
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