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RRB Junior Engineer / DMS / CMA 2019 · Question 3484 of 3719

What is the chemical symbol of acetylene gas?

  1. AC 2H 2Correct
  2. BCH 3
  3. CC 3H 2
  4. DCH 2

Answer: A. C 2H 2

Explanation

The correct answer isC2H2. Acetylene or ethyne is a hydrocarbon and the simplest alkyne chemical compound with the formula C 2H 2. Acetylene is also called Narcylen or Vinylene It has two carbon atoms are bonded together in a triple bond. Shape: Linear, Hybridization Type: sp. Important Points CH 3 Methyl C 3H 2 Propynylidene CH 2 Methylene Key Points Acetylene is used in welding and cutting processes. The welding process using acetylene is known as cutting oxy-fuel or cutting coal.

Source: RRB JE 2019 (CBT 2) (ME) Previous Year Paper (31 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

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