Practice Exercise 4

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Chapter 1: Electronic Structure and Covalent Bonding

Exercises

Practice Exercise 4

This activity contains 6 questions.

How would you describe the carbon–carbon bonds in CH₃-CH₂-CH₃?

sp²-sp³sp-spsp³-spsp²-sp²sp³-sp³

If the sigma bonds of H₂C=O are in the xy-plane, which of the three p atomic orbitals is used to form the pi bond?

p_yp_zp_x and p_z in equal partsp_xp_y and p_zO in equal parts

Which of the following molecules contains an sp-hybridized N atom?

NH₃NH₄⁺H₂C=NHHCNCH₃NH₂

What element has the electronic configuration 1s²2s²2p⁴?

fluorineoxygencarbonnitrogenboron

What kind of atomic orbital is occupied by the lone pair electrons of ammonia?

an s atomic orbitalan sp² atomic orbitala p atomic orbitalan sp³ atomic orbitalan sp atomic orbital

Which of the following statements is true?

The more s character, the stronger the bond.The more p character, the stronger the bond.The more s character, the smaller the bond angle.The more p character, the shorter the bond.The more s character, the longer the bond.

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