Which of the following statements about the allotropes of carbon is correct?
Answer
Diamond has each carbon atom tetrahedrally bonded to four other carbon atoms.
The correct answer is Diamond has each carbon atom tetrahedrally bonded to four other carbon atoms. — Therefore option C is the correct statement.
Step-by-step solution
- Read each option carefully.
- Recall that in diamond every carbon is sp³ hybridised and bonded to four neighbours in a tetrahedral arrangement.
- Recognise that this description matches option C.
- Therefore option C is the correct statement.
Common mistake: Choosing option A, mistakenly thinking diamond conducts electricity like graphite.
Concept tested: Allotropes of carbon
Published · How this solution was prepared and checked
Related questions
- 1 Which statement about the allotrope diamond is correct?
- 2 Which of the following statements about the polymerisation of ethylene to polyethylene is correct?
- 3 When butane (C₄H₁₀) combusts completely, it forms CO₂ and H₂O. Write the balanced chemical equation and calculate the mass of CO₂ produced when 5.0 g of butane is burnt in excess oxygen.
- 4 Explain why carbon dioxide (CO₂) acts as a greenhouse gas. In your answer, describe its interaction with infrared radiation and its effect on Earth's temperature.
- 5 Methane burns in oxygen according to the balanced equation CH_4 + 2O_2 → CO_2 + 2H_2O. Calculate the volume of oxygen at STP required to completely combust 16 g of methane.
- 6 Describe the industrial preparation of acetylene from calcium carbide, write the balanced chemical equation, list two major uses of acetylene, and explain why acetylene is preferred as a fuel in welding.