Consider the following statements: 1. Baking soda is used in fire extinguishers. 2. Quicklime is used in the manufacture of glass. 3. Gypsum is used in the manufacture of Plaster of Paris. Which of the statements given above is/are correct ?

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Submitted by examrobotsa on

Q: 56 (IAS/2004)
Consider the following statements:
1. Baking soda is used in fire extinguishers.
2. Quicklime is used in the manufacture of glass.
3. Gypsum is used in the manufacture of Plaster of Paris.
Which of the statements given above is/are correct ?

question_subject: 

Science

question_exam: 

IAS

stats: 

0,71,20,7,11,2,71

keywords: 

{'gypsum': [0, 0, 1, 3], 'fire extinguishers': [0, 0, 3, 0], 'soda': [0, 0, 5, 5], 'quicklime': [0, 0, 1, 0], 'manufacture': [1, 0, 6, 10], 'plaster': [0, 0, 1, 0], 'glass': [0, 0, 1, 4]}

All the statements in the question are correct.

Statement 1: Baking soda, or sodium bicarbonate, is indeed used in fire extinguishers. It releases carbon dioxide gas when heated, which helps to suffocate the fire and prevent it from spreading.

Statement 2: Quicklime, or calcium oxide, is used in the manufacture of glass. It is one of the key ingredients which are melted together to produce glass.

Statement 3: Gypsum is used in the manufacture of Plaster of Paris. When gypsum is heated, it loses some of its water content and turns into Plaster of Paris, which is a quick-setting material used in construction and art.

Therefore, option 4 is the correct answer as it includes all the correct statements.