Covalent and dative covalent bonding Quiz
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5 questions, one answer each
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1. How many electrons are shared in a double bond?
- A. 2
- B. 3
- C. 4
- D. 8
2. Which species contains a dative covalent bond?
- A. NH₄⁺
- B. CH₄
- C. H₂O
- D. NH₃
3. How is a dative covalent bond shown in a displayed formula?
- A. A double line
- B. A dashed line
- C. A wedge
- D. An arrow from the donor to the acceptor
4. How many lone pairs are there on the oxygen atom in H₃O⁺?
- A. 0
- B. 2
- C. 1
- D. 3
5. How many pairs of electrons are shared in a molecule of carbon dioxide, O=C=O?
- A. 2
- B. 4
- C. 6
- D. 8