What is the general formula of cycloalkanes?
Answer and explanation
Correct answer: A. CₙH₂ₙ
- Step 1: A ring has no free ends, so two hydrogens are lost compared with the alkane.
- Step 2: For cyclopentane this gives C₅H₁₀.
Answer
CₙH₂ₙ.
Why not the others: CₙH₂ₙ₊₂: this is the alkane formula. CₙH₂ₙ₋₂: this is the alkyne formula. CₙHₙ: this does not fit cyclic alkanes.
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