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Railways PYQCBT 1 2016

RRB NTPC · Question 57

What is black gold? A. Raw gold B. Petrol C. Coal D. Carbon

  1. B

  2. C

  3. A

  4. D

Show answer & explanation

Answer: (A) B

Explanation

Crude oil (petroleum) is called 'black gold' because of its dark colour and great economic value.