Chapter 1 Multiple Choice Questions

* not completed

. Which is the ground-state electronic configuration of chlorine?

1s²2s²2p⁵ correct incorrect

1s²2s²2p⁶3s²3p⁴ correct incorrect

1s²2s²2p⁶3s²3p⁵ correct incorrect

1s²2s²2p⁸3s²3p⁵ correct incorrect

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. Which is the ground-state electronic configuration of Na⁺?

1s²2s²2p⁸ correct incorrect

1s²2s²2p⁶3s¹ correct incorrect

1s²2s²2p⁶3s² correct incorrect

1s²2s²2p⁶ correct incorrect

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. Which of the following atoms or ions has the electronic configuration 1s²2s²2p⁶3s²3p⁶ ?

Ne correct incorrect

K correct incorrect

Cl^- correct incorrect

Mg²⁺ correct incorrect

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. Which of the following elements is less electronegative than carbon?

Si correct incorrect

N correct incorrect

Cl correct incorrect

F correct incorrect

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. Which of the following bonds is the most polar?

C-H correct incorrect

O-H correct incorrect

C-O correct incorrect

N-H correct incorrect

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. Which is a correct Lewis structure for carbon dioxide, CO₂?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which is a correct Lewis structure for carbonic acid, H₂CO₃?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which is a correct Lewis structure for hydrogencarbonate ion, HCO₃^-?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which is a correct Lewis structure for hydrogen cyanide, HCN?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which is a correct Lewis structure for nitric acid, HNO₃?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

* not completed

. Which of the following does not have the ground-state configuration 1s²2s²2p⁶ ?

Ne correct incorrect

Na⁺ correct incorrect

Cl^- correct incorrect

F^- correct incorrect

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. Which of the following elements is the most electronegative?

B correct incorrect

C correct incorrect

Cl correct incorrect

N correct incorrect

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. Which of the following elements is the most electropositive?

B correct incorrect

C correct incorrect

Cl correct incorrect

N correct incorrect

* not completed

. Which of the following elements is the most electronegative?

Br correct incorrect

Cl correct incorrect

F correct incorrect

I correct incorrect

* not completed

. Which of the following elements is the most electropositive?

Br correct incorrect

Cl correct incorrect

F correct incorrect

I correct incorrect

* not completed

. Which of the following compounds has an ionic bond?

H₂O correct incorrect

NH₄Cl correct incorrect

CH₃Cl correct incorrect

CH₃Li correct incorrect

* not completed

. Which of the following molecules does not have a dipole moment?

CH₃Cl correct incorrect

CH₂Cl₂ correct incorrect

CHCl₃ correct incorrect

CCl₄ correct incorrect

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. Which of the following contains an atom (other than hydrogen) which lacks an octet of valence electrons?

NH₃ correct incorrect

H₃O⁺ correct incorrect

BH₃ correct incorrect

NH₄⁺ correct incorrect

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. Which of the following is a correct Lewis structure of diazomethane, CH₂N₂?

correct incorrect

correct incorrect

correct incorrect

correct incorrect

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. Which of the following Lewis structures of protonated methanamide is incomplete?

correct incorrect

correct incorrect

correct incorrect

correct incorrect