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  9. Q116

BPSC (Bihar PCS) 2022 · Question 116 of 150

Consider the following statements: 1. Addition of salt to pure water increases the boiling point of water and decreases the freezing point of water. 2. When methyl alcohol is added to water, the boiling point of water decreases. Which of the above statements is/are correct?

General Science

  1. A1 only
  2. B2 only
  3. CBoth 1 and 2Correct
  4. DSalt and methyl alcohol are the same in behaviour
  5. ENone of the above/More than one of the above

Answer: C. Both 1 and 2

Explanation

Salt elevates the boiling point and depresses the freezing point of water, while volatile methyl alcohol lowers the boiling point.

Source: 67th BPSC Prelims Re-Exam 2022 (Set D)

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