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Chemistry · Oct / Nov 2019 · Paper 11 · Question 18

5070The characteristic properties of acids and bases

Sodium hydroxide is added to a solution to alter its pH. A neutral solution is formed. Which statement is correct?

  1. ASodium hydroxide is an acid and reacts with an alkali to form water as a product.
  2. BSodium hydroxide will lower the pH of the solution.
  3. CThe pH of the neutral solution is 14.
  4. DThe pH of the solution before sodium hydroxide is added is below 7.

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Correct answer: D. The pH of the solution before sodium hydroxide is added is below 7.

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