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General Studies (Paper 1) from JKPSC JKAS 2024 Prelims
Subject: General Studies (Paper 1) Environment & Ecology Jammu & Kashmir Public Service Commission Last updated May 9, 2026
JKPSC Prelims 2024 General Studies (Paper 1)

Consider the following statements:

1. Buckyballs, also known as fullerenes, are fascinating carbon molecules that resemble soccer balls.

2. Fly ash from thermal power plants contains buckyballs.

Which one of the following is correct?

Answer & Explanation

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Correct Answer: Option B — Both 1 and 2 are correct, but 2 does not explain 1
1. The Nature of Buckyballs Statement 1 is correct. Buckyballs (specifically $C_{60}$) are a form of carbon where the atoms are arranged in a series of interlocking hexagons and pentagons. This structure creates a hollow sphere that looks exactly like a traditional soccer ball. They are part of the fullerene family, discovered in the 1980s.2. Presence in Fly Ash Statement 2 is also correct. Fly ash is a byproduct of burning pulverized coal in thermal power plants. Because coal combustion involves high temperatures and complex chemical reactions involving carbon, small amounts of fullerenes—including buckyballs—are naturally synthesized during the process and can be found in the resulting ash. Why 2 doesn't explain 1While both facts are true, Statement 2 (the location where they are found) does not provide a logical explanation for Statement 1 (their physical shape and nomenclature).The "soccer ball" shape is a result of molecular geometry and the way carbon atoms bond to reach a stable, low-energy state. Their presence in fly ash is simply a matter of environmental occurrence. Finding a buckyball in ash doesn't "explain" why it looks like a soccer ball; those are two distinct properties.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.

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JKPSC JKAS 2024 Prelims

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Exam JKPSC
Recruitment JKAS
Stage Prelims
Year 2024
Subject General Studies (Paper 1)
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