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UPSC Prelims 2005Question 82Science & Technology

Consider the following statements: 1. Anhydrous sodium carbonate is commonly known as baking soda. 2. Baking soda is used in fire extinguishers. 3. Bleaching powder is manufactured in Hasenclever plant. Which of the statements is/are correct?

Options

  1. (a)1, 2 and 3
  2. (b)2 and 3
  3. (c)3 only
  4. (d)1 and 2

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