The combining powers of HCO ? 3 ; O 2? ; Na + ; Cl

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POST UTME OAU

The combining powers of HCO?3; O2?; Na+; Cl? respectively are:

  • A) ?2, +1, ?1, +1
  • B) ?1, ?2, +1, ?1
  • C) +1, ?2, +1, ?1
  • D) None of these

Correct Answer: B) ?1, ?2, +1, ?1

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