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JAMB Chemistry 2005 Question 16

Question 16

Hydrocarbons

How many hydrogen atoms does a single ring cycloalkane have less than the corresponding open-chain alkane?

  1. A.Two
  2. B.Three
  3. C.Four
  4. D.One
Show the answer and explanation

Answer: A (Two)

Explanation

Alkanes are CnH2n+2 and cycloalkanes are CnH2n; closing the ring removes two hydrogen atoms.