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Sample problems isomers

  1. Question: How many isomers does Pentane (C₅H₁₂) have? Answer: Pentane has three isomers (Pentane, Isopentane, and Neopentane).

  2. Question: How many structural isomers does Hexane (C₆H₁₄) have? Answer: Hexane has five structural isomers.
  3. Question: Identify the number of possible isomers of C₇H₁₆. Answer: C₇H₁₆ can have 9 isomers.
  4. Question: How many isomers can be formed from the compound C₄H₁₀? Answer: C₄H₁₀ (Butane) can form two isomers.
  5. Question: Calculate the number of structural isomers possible for C₈H₁₈. Answer: There are 18 structural isomers for C₈H₁₈.
  6. Question: How many geometric isomers can exist for 2-pentene (C₅H₁₀)? Answer: 2-pentene can have 2 geometric isomers (cis and trans).
  7. Question: How many geometric isomers are there for 1,2-dichloroethene (C₂H₂Cl₂)? Answer: There are 2 geometric isomers for 1,2-dichloroethene.
  8. Question: How many stereoisomers can be formed from 1,2-dichlorocyclohexane (C₆H₁₀Cl₂)? Answer: 1,2-dichlorocyclohexane can form 4 stereoisomers.
  9. Question: How many possible isomers can the compound C₃H₆O have? Answer: C₃H₆O can have 3 isomers.
  10. Question: How many isomers does the compound C₄H₈ have? Answer: C₄H₈ can have two isomers.
  11. Question: What is the total number of optical isomers that can be formed by an amino acid with formula C₃H₇NO₂? Answer: Amino acids can have 2 optical isomers (D and L forms).
  12. Question: How many stereoisomers does a compound with the formula C₄H₆Cl₂ have? Answer: C₄H₆Cl₂ can have up to 9 stereoisomers.
  13. Question: How many possible isomers can the compound C₆H₁₂ have? Answer: C₆H₁₂ can have 25 isomers.
  14. Question: How many isomers does the compound C₂H₂Cl₂ have? Answer: C₂H₂Cl₂ can have 3 isomers.
  15. Question: What is the total number of structural isomers that can be formed by the compound C₅H₁₁Cl? Answer: C₅H₁₁Cl can have 9 structural isomers.
  16. Question: How many isomers does the compound C₆H₁₄O have? Answer: C₆H₁₄O can have 20 isomers.
  17. Question: How many geometric isomers does 2,3-dichloro-2-butene (C₄H₆Cl₂) have? Answer: 2,3-dichloro-2-butene can have 2 geometric isomers.
  18. Question: How many isomers can be formed from the compound C₄H₈O? Answer: C₄H₈O can form 7 isomers.
  19. Question: How many stereoisomers can the compound C₃H₆Cl₂ form? Answer: C₃H₆Cl₂ can form 4 stereoisomers.
  20. Question: How many structural isomers does the compound C₆H₁₄ have? Answer: C₆H₁₄ (Hexane) has 5 structural isomers.

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