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GS Paper IUPSC Prelims 2010
Indian Geography
Question No. 207Interactive Test Mode
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+2-0.66

Q207. Given below are the names of four energy crops. Which one of them can be cultivated for ethanol?

Given below are the names of four energy crops. Which one of them can be cultivated for ethanol?

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 2010 • Geography

Correct Answer: Option (B) — Maize

Concept & Option Breakdown

Standard Reference Verified
  • Option (b) is correct: Maize (corn) has high starch content that can easily be fermented into bioethanol, making it a primary feed crop for ethanol production worldwide and in India's Ethanol Blended Petrol (EBP) program.
  • Options (a) and (c) are incorrect: Jatropha and Pongamia (karanja) produce non-edible oilseeds primarily used for biodiesel production.
  • Option (d) is incorrect: Sunflower is an oilseed crop cultivated for edible vegetable oil.
Elimination Heuristic & Exam Approach

Distinguish between feedstock types: Starch/sugar-rich crops (sugarcane, maize, broken rice) are used for ethanol fermentation, whereas oil-bearing seeds (Jatropha, Pongamia) are processed into biodiesel.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2010 (Q207)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Indian Geography
Official Answer KeyOption (B) — Maize

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Frequently Asked Questions — UPSC Prelims 2010 Q207

What is the official answer for UPSC Prelims 2010 GS Paper I Question 207 (Geography)?

The official UPSC answer key for this 2010 Geography (Indian Geography) question is Option (B): "Maize". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2010 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Indian Geography". You can explore all repeated questions from Indian Geography 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 Indian Geography UPSC Prelims question using option elimination?

Distinguish between feedstock types: Starch/sugarrich crops (sugarcane, maize, broken rice) are used for ethanol fermentation, whereas oilbearing seeds (Jatropha, Pongamia) are processed into biodiesel.

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