Among LiCl, BeCl2, BCl3 and CCl4 the covalent bond character follows the order:
Correct answer: B. LiCl< BeCl3< BCl3< CCl4
- A. LiCl> BeCl2> BCl3> CCl4
- B. LiCl< BeCl3< BCl3< CCl4
- C. LiCl> BeCl2> CCl4> BCl3
- D. LiCl< BeCl3< BCl3> CCl4
Explanation
Smaller cation causes more polarization of anion. The covalent character of ionic compound can be determined by Fajans rules,the cation with higher positive charge has greater covalent character than cation with lower positive charge
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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