Which of the following does not have at least one multiple covalent bond?
A) carbon dioxide
B) ethene, C₂H₄
C) hydrogen cyanide
D) ethane, C₂H₆
Correct Answer:
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Q55: Phosphine, PH₃, has _ covalent pairs and
Q56: Which of the following has more than
Q57: Hydrazine has _ valence electrons.
A) 14
B) 12
C)
Q58: Nitrogen trifluoride has _ valence electrons.
A) 20
B)
Q59: Acetylene, C₂H₂, has _.
A) two single bonds
B)
Q61: Consider a bond A-B. If the difference
Q62: Identify the most electronegative element.
A) fluorine
B) oxygen
C)
Q63: Which of the following bonds will have
Q64: The central atom in sulfuric acid is
Q65: Identify the most polar covalent bond.
A) C-C
B)
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