Which of the following compound of group-14 elements would you expect to be most ionic in character ?

Which of the following compounds of elements in group IV is expected to be the most ionic ?

Which one of the following compounds of Group–14 elements is not known?

Which of the following pairs of elements would you expect to have lower first ionization energy ? k or Ar

Which of the following pairs of elements would you expect to have lower first ionization energy ? (i) Cl or F

Which of the following pairs of elements would you expect to have lower first ionization energy ? Cl or S

Which of the following pairs of elements would you expect to have lower first ionization energy ? Kr or Xe

Which of the following compounds would you expect to be strongest carbon acid ?

Which of the following compounds would you expect to be strongest carbon acid ?