Give reasons for the following :
(i) Covalent bonds are directional bonds while ionic bonds are nondirectional.
(ii) Water molecule has bent structure whereas carbon dioxide molecule is
linear.
(iii) Ethyne molecule is linear.


NCERT Class XI
Chemistry - Exemplar Problems

Chapter 4. Chemical bonding and molecular structure

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Answers

2015-07-15T10:51:45+05:30
PURE COVALENT bond are not directional but covalent molecule made of diff. element are directional. 
          2. O in water has2 lone pair electron which repeal the bonded pair e of O-H 
bond ,asa result water molecule bend but in carbon di oxide this type of lone pair absent in central atom carbon. 
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