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CBSE Class 12-science Answered

<div>how can nitrogen form bonds if it is highly electonegative?</div>
Asked by nidhi madrewar | 21 Dec, 2015, 01:25: PM
Expert Answer

Electro negativity decreases gradually on descending down the group from N to Bi.

Nitrogen is highly electronegative as compared to phosphorus.

This causes a greater attraction of electrons towards nitrogen in NH3 than towards phosphorus in PH3.

So the extent of hydrogen bonding in PH3 is very less as compared to NH3.

As a result NH3 forms hydrogen bond but PH3 does not.

Answered by Vaibhav Chavan | 22 Dec, 2015, 04:40: PM
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