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?

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Q: 98 (IAS/2005)
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?

question_subject: 

Science

question_exam: 

IAS

stats: 

0,27,56,42,27,8,6

keywords: 

{'anhydrous sodium carbonate': [0, 0, 1, 1], 'bleaching powder': [1, 0, 0, 2], 'soda': [0, 0, 5, 5], 'fire extinguishers': [0, 0, 3, 0]}

The correct answer is 2 and 3.

Statement 1 is incorrect. Anhydrous sodium carbonate is commonly known as soda ash or washing soda, not baking soda. Baking soda is actually sodium bicarbonate (NaHCO3).

Statement 2 is correct. Baking soda (sodium bicarbonate) is used in some fire extinguishers as it can release carbon dioxide when heated, which helps smother the fire by displacing oxygen.

Statement 3 is correct. Bleaching powder is indeed manufactured in Hasenclever plant, which is a common method for producing this chemical compound.

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