Moderate

Calculations regarding ionic character tells us that there is no bond when ionic character is _.

Correct answer: B. 100%

  • A. 72%
  • B. 100%
  • C. 92%
  • D. 9%

Explanation

Criteria of electronegativity helps us to understand the nature of bond. So, in order to decide the % of ionic nature in a compound, it is better to note the difference of electronegativity between the bonded atoms. If the difference is 1.7 or more than that, then the bond is said to be ionic. Keeping this aspect in view, NaCl has 72% ionic character. CsF has 92% ionic character and calculations tell us that there is no bond with 100% ionic character.(PTB chapter 6: Chemical bonding)

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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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