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GS Paper IUPSC Prelims 2022
Current Events
Question No. 145Interactive Test Mode
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Q145. 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?

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?

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2022 • International Relations and Current Affairs

Correct Answer: Option (A) — 1 and 3

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is correct: Polyethylene terephthalate (PET/Polyester) fibres are widely blended with natural fibres such as cotton and wool to enhance wrinkle resistance, tear strength, and durability.

Statement 2 is incorrect: PET containers are not recommended for storing all types of alcoholic beverages (particularly high-strength spirits over extended periods) due to alcohol's solvent action and gas/oxygen permeability.

Statement 3 is correct: PET is 100% recyclable and commonly reprocessed into recycled PET (rPET) fibres, carpets, and packaging containers.

Statement 4 is incorrect: Incineration of PET, like all carbon-based synthetic polymers, releases carbon dioxide ($CO_2$) and other greenhouse gases/pollutants.

Elimination Heuristic & Exam Approach

Eliminate extreme statement 4: Burning any petroleum-based plastic produces $CO_2$ (a greenhouse gas).

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2022 (Q145)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicInternational Relations and Current Affairs → Current Events
Official Answer KeyOption (A) — 1 and 3

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Frequently Asked Questions — UPSC Prelims 2022 Q145

What is the official answer for UPSC Prelims 2022 GS Paper I Question 145 (International Relations and Current Affairs)?

The official UPSC answer key for this 2022 International Relations and Current Affairs (Current Events) question is Option (A): "1 and 3". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2022 question belong to?

This question belongs to GS Paper I under the subject "International Relations and Current Affairs" and micro-topic "Current Events". You can explore all repeated questions from Current Events in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Current Events UPSC Prelims question using option elimination?

Eliminate extreme statement 4: Burning any petroleumbased plastic produces $CO2$ (a greenhouse gas).

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