chapt 21A

10問 • 8ヶ月前

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通報

問題一覧

In the valence-bond description of ethene (C₂H₄), how is the n bond formed?

C. By side-to-side overlap of unhybridized p orbitals on each carbon

In CH4, how are the carbon atom's sp³ hybrid orbitals arranged geometrically?

C. Tetrahedral

In the valence-bond theory, which condition * must be met for a covalent bond to form between two atoms?

C. Their atomic orbitals must overlap with unpaired electrons of opposite spin

Which of the following combinations correctly describes the bonding in the carbon dioxide (CO₂) molecule?

B. Two o bonds and two π bonds

What is the consequence of using sp hybrid * orbitals on Be in the bonding description of BeH₂?

B. It allows equivalent bonding between Be and each H.

Why is the BH₃ molecule considered electron-deficient?

B. Boron only has six electrons in its valence shell after bonding.

Which of the following best explains the decreasing bond angle trend: CH4 > NH3 > H₂O?

B. Increasing number of lone pairs on the central atom

Why is BeH₂ linear in shape?

C. The sp hybridization leads to two bonding orbitals oriented 180° apart.

Which of the following best describes the hybridization of the beryllium atom in a linear BeH₂ molecule?

A. sp

Which of the following molecular orbitals are formed from the overlap of boron's sp² hybrid orbitals with hydrogen orbitals in BH₃?

A. Three σ bonds from sp²-1s overlap

biochem

biochem

inorg

inorg

phychem

phychem

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問題一覧

In the valence-bond description of ethene (C₂H₄), how is the n bond formed?

C. By side-to-side overlap of unhybridized p orbitals on each carbon

In CH4, how are the carbon atom's sp³ hybrid orbitals arranged geometrically?

C. Tetrahedral

In the valence-bond theory, which condition * must be met for a covalent bond to form between two atoms?

C. Their atomic orbitals must overlap with unpaired electrons of opposite spin

Which of the following combinations correctly describes the bonding in the carbon dioxide (CO₂) molecule?

B. Two o bonds and two π bonds

What is the consequence of using sp hybrid * orbitals on Be in the bonding description of BeH₂?

B. It allows equivalent bonding between Be and each H.

Why is the BH₃ molecule considered electron-deficient?

B. Boron only has six electrons in its valence shell after bonding.

Which of the following best explains the decreasing bond angle trend: CH4 > NH3 > H₂O?

B. Increasing number of lone pairs on the central atom

Why is BeH₂ linear in shape?

C. The sp hybridization leads to two bonding orbitals oriented 180° apart.

Which of the following best describes the hybridization of the beryllium atom in a linear BeH₂ molecule?

A. sp

Which of the following molecular orbitals are formed from the overlap of boron's sp² hybrid orbitals with hydrogen orbitals in BH₃?

A. Three σ bonds from sp²-1s overlap