With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements: 1. Its fibres can be blended with wool and cotton fibres to reinforce their properties. 2. Containers made of it can be used to store any alcoholic beverage. 3. Bottles made of it can be recycled into other products. 4. Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions. Which of the statements given above are correct?
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A hard Science & Technology multiple-choice question from UPSC Prelims 2022. Attempt it above, then check the correct answer and detailed explanation below.
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Correct answer: A. 1 and 3
Statement 1 is correct — PET fibres (polyester) are blended with wool and cotton. Statement 3 is correct — PET bottles are widely recycled into other products. Statement 2 is wrong — PET is not suitable for storing all alcoholic beverages. Statement 4 is wrong — incinerating PET releases carbon dioxide (a greenhouse gas). So 1 and 3 — option (a).
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