Multiple choice

What is the molecular formula of butane?

  1. C4H8

  2. C4H9

  3. C4H10

  4. C5H12

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Butane is a 4-carbon alkane with the formula C4H10 following the CnH2n+2 pattern for alkanes. Substituting n=4 gives C4H(2×4+2) = C4H10.