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Post-UTME Chemistry 2005 Objective — Question 24

Question 24 of 27 from the Post-UTME Screening (Post-UTME) Chemistry 2005 Objective paper, with the correct answer and a full explanation.

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Which is the function of silica SiO2 in the equation shown? CaO + SiO2 -> CaSiO3

  • A. a basic oxide
  • B. a reducing agent
  • C. an acidic oxideCorrect
  • D. an oxidizing agent

Explanation

Silica acts as an acidic oxide, reacting with the basic oxide CaO.

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