2020 GS Paper I, all questions

UPSC Prelims 2020 · GS Paper I

Question 94: Economy and Social Development

With reference to chemical fertilizers in India, consider the following statements :

  1. 1.At present, the retail price of chemical fertilizers is market-driven and not administered by the Government.
  2. 2.Ammonia, which is an input of urea, is produced from natural gas.
  3. 3.Sulphur, which is a raw material for phosphoric acid fertilizer, is a by-product of oil refineries.

Which of the statements given above is/are correct ?

a1 only
b2 and 3 only
c2 only
d1, 2 and 3

AnswerUPSC’s answer is (b).

Natural gas is the main feedstock for the ammonia used to make urea in India, so statement 2 is right. Sulphur, needed to make sulphuric acid for phosphoric acid fertiliser, is largely recovered as a by-product of oil refineries, so statement 3 is right. The retail price of urea is fixed by the Government, so statement 1 fails.

  • 1. The retail price of urea is fixed by the Government.
  • 2. Ammonia for urea is made from natural gas.
  • 3. Sulphur is recovered as a by-product of oil refining.

How you could have got this

  1. If you were sure statement 1 is not correct, (a) and (d) go: each of them includes 1.

    What you needed to know: The retail price of urea is fixed by the Government.

  2. Then, if you were sure statement 3 is correct, (c) goes: it leaves 3 out.

    What you needed to know: Sulphur is recovered as a by-product of oil refining.

Only (b) is left. You didn’t need statement 2.

Which options go is worked out from UPSC’s key and the options, not by a model.

Why each option is right or wrong
  • (a) Wrong: urea's retail price is administered by the Government.
  • (b) Right: statements 2 and 3.
  • (c) Wrong: statement 3 is also correct.
  • (d) Wrong: statement 1 is false.

Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.

Source: UPSC, Civil Services (Preliminary) Examination 2020, General Studies Paper I, Series A. The paper on upsc.gov.in.