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Monday, 13 April 2026
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Two metallic ions commonly present in hard water are

Two metallic ions commonly present in hard water are
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Ca2+ and Zn2+
  • B Cu2+ and Na+
  • C Mg2+ and Ca2+
  • D Fe2+ and Na+
  • E Zn2+ and Cu2+
Correct Answer: Option C
Explanation:

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