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Chemistry · May / June 2017 · Paper 12 · Question 31

5070Air quality and climate

Bottled fruit juice may have small amounts of sulfur dioxide added. What is the purpose of this?

  1. Ato adjust the acidity of the fruit juice
  2. Bto kill any bacteria present
  3. Cto improve the flavour of the fruit juice
  4. Dto neutralise any alkalis present

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Correct answer: B. to kill any bacteria present

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