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Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers
nmdcat.online July 2, 2026

One mole of hydroxide ions contains electrons equal to

A. 8 moles
B. 9 moles
C. 10 moles
✓
D. 11 moles

📝 Explanation

OH⁻ contains eight electrons from oxygen, one from hydrogen, and one extra electron due to the negative charge.

📖 Additional Information

  • 8 moles
  • 9 moles
  • 10 moles
  • 11 moles

OH⁻ contains eight electrons from oxygen, one from hydrogen, and one extra electron due to the negative charge.

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