Which of the following pairs of molecules will have permanent dipole moment for both members?

Which of the following pairs of molecules will have permanent dipole moment for both members?

Q. Which of the following pairs of molecules will have permanent dipole moment for both members?

  1. NO2 and CO2
  2. NO2 and O3
  3. SiF4 and CO2
  4. SiF4 and NO2

Answer: NO2 and O3

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