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Which of the following is the correct formula for ethyne?

Practice Questions

Q1
Which of the following is the correct formula for ethyne?
  1. C2H2
  2. C2H4
  3. C2H6
  4. C2H8

Questions & Step-by-Step Solutions

Which of the following is the correct formula for ethyne?
  • Step 1: Understand that ethyne is a type of hydrocarbon.
  • Step 2: Know that hydrocarbons are made of carbon (C) and hydrogen (H) atoms.
  • Step 3: Identify that ethyne is specifically an alkyne, which means it has a triple bond between carbon atoms.
  • Step 4: Determine the number of carbon atoms in ethyne, which is 2 (C2).
  • Step 5: Calculate the number of hydrogen atoms. For alkynes, the formula is CnH(2n-2). Here, n = 2, so H = 2(2) - 2 = 2.
  • Step 6: Combine the number of carbon and hydrogen atoms to get the formula: C2H2.
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