Post-UTME Chemistry 2016 Objective — Question 8
Question 8 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2016 Objective paper, with the correct answer and a full explanation.
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The rate of reaction between zinc and sodium hydroxide can be increased by using
- A. zinc lumps and concentrated sodium hydroxide
- B. dilute sodium hydroxide and granulated zinc
- C. concentrated sodium hydroxide and granulated zincCorrect
- D. dilute sodium hydroxide and zinc lumps
Explanation
Both a more concentrated reagent and a greater surface area (granulated zinc) increase reaction rate.
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