Introduction Quiz
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5 questions, one answer each
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1. What is a hydrocarbon?
- A. A compound of hydrogen and carbon only
- B. Any compound containing carbon
- C. A compound of hydrogen and oxygen only
- D. A compound found only in crude oil
2. Which formula shows the simplest whole-number ratio of atoms in a compound?
- A. Molecular formula
- B. Empirical formula
- C. Structural formula
- D. Displayed formula
3. C4H10 can exist as butane or methylpropane. What is the relationship between these two compounds?
- A. They are the same compound with different names
- B. They are isomers
- C. They are different homologous series
- D. They have different molecular formulae
4. A student reacts an alkane with a halogen and a hydrogen atom is replaced by a halogen atom. What type of reaction is this?
- A. Addition
- B. Combustion
- C. Substitution
- D. Neutralisation
5. Two organic compounds belong to the same homologous series. Which statement about them must be true?
- A. They have identical boiling points
- B. They differ in molecular formula by a CH2 unit and share a functional group
- C. They are isomers of each other
- D. They have the same molecular formula