WAEC Chemistry 2025 Objective — Question 5

Question 5 of 50 from the West African Examinations Council (WAEC) Chemistry 2025 Objective paper, with the correct answer and a full explanation.

Both Na+ and K+ have a tendency to

A. give electrons
B. have a positive reduction potential
C. accept electrons to be reduced back to their neutral formsCorrect
D. have a negative oxidation state

Explanation

Both sodium (Na) and potassium (K) are alkali metals. These metals readily lose an electron to form cations (Na+, K+). As positively charged ions, Na+ and K+ have a tendency to accept electrons so they can be reduced back to their neutral forms.

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