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Chemistry — Second Secondary

Chemistry — Second Secondary

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Chemistry — Second Secondary 2026/2027

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Quiz

Chapter 1 — Chemical Calculation — Picture questions (exam style)

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1.
The table gives the analysis of a hydrocarbon. What is its molecular formula?
The table gives the analysis of a hydrocarbon. What is its molecular formula?
C₁₂H₁₆
C₂₄H₃₂
C₁₃H₁₆
C₁₂H₁₈