Worksheet: Linking Hybridization to Geometry and Oxidation State

In this worksheet, we will practice linking the hybridization of an atom in a molecule to the oxidation state and geometry of bonds and electron pairs.

Q1:

An atom of a main-group element forms three bonds and has three nonbonding electron pairs.

What is the hybridization of this atom?

  • Asp
  • Bsp3d2
  • Csp3d
  • Dsp3
  • Esp2

Which term describes the bonding geometry in this molecule?

  • ATrigonal pyramidal
  • BT-shaped
  • CTrigonal planar
  • DSquare planar
  • ESeesaw

Which term describes the geometry of the electron pairs around the main-group atom?

  • ATetrahedral
  • BTrigonal planar
  • COctahedral
  • DTrigonal prismatic
  • ETrigonal bipyramidal

Q2:

Sulfuric acid is manufactured by the following series of reactions.

  • Step 1: S()+8O()8SO()822sgg
  • Step 2: 2SO()+O()2SO()223ggg
  • Step 3: SO()+HO()HSO()3224gll

Which of the following is closest to the bond angle in S8?

  • A 1 0 4 . 5
  • B 1 2 0
  • C 9 0
  • D 1 0 9 . 5
  • E 1 8 0

Which of the following is closest to the bond angle in SO2?

  • A 9 0
  • B 1 2 0
  • C 1 8 0
  • D 1 0 9 . 5
  • E 1 0 4 . 5

Which reactions have no effect on the hybridization of the S atom?

  • AStep 3 only
  • BNone of the steps
  • CStep 1 only
  • DStep 2 only
  • EAll of the steps

Q3:

Potassium dichromate is an oxidizing agent commonly used in organic synthesis.

What is the formula of potassium dichromate?

  • A K C r O 2 2 7
  • B K C r O 3
  • C K C r O 2 6
  • D K C r O 2 4
  • E K C r O 2 2 4

What is the oxidation state of chromium in the dichromate ion?

What is the hybridization of chromium in the dichromate ion?

  • Asp3d2
  • Bsp2d
  • Csp3d
  • Dsd3
  • Esd4

What is the bonding geometry around a chromium atom in a dichromate ion?

  • ATetrahedral
  • BTrigonal planar
  • COctahedral
  • DSquare planar
  • ETrigonal pyramidal

Q4:

Boric acid, HBO33, is a Lewis acid but not a Brønsted–Lowry acid. The compound increases the pH of a solution by reacting with water as shown in the equation. HBO+HOX+H332+

Identify the species X.

  • A H B O 5 4 2
  • B H B O 3 4 2
  • C H B O H 3 3 +
  • D H B O 4 4
  • E H B O 2 3

What is the geometry around the boron atom in species X?

  • ATrigonal bipyramidal
  • BOctahedral
  • CTetrahedral
  • DSquare planar
  • ETrigonal pyramidal

What is the hybridization of the boron atom in species X?

  • Asp3d2
  • Bsp2
  • Csp3
  • Dsp3d
  • Esp

Q5:

Iodine heptafluoride can be produced by the reaction of fluorine with iodine pentafluoride at high temperature as shown in the equation. F()+IF()IF()257ggg

What is the hybridization of the I atom in IF5?

  • A s p d
  • B s d
  • C s p d
  • D s p d
  • E s d

What term describes the bonding geometry in IF5?

  • ATrigonal bipyramidal
  • BPentagonal planar
  • CTrigonal prismatic
  • DSquare pyramidal
  • EOctahedral

What is the smallest angle between IF bonds in IF7?

What term describes the bonding geometry in IF7?

  • ATrigonal bipyramidal
  • BPentagonal pyramidal
  • COctahedral
  • DSquare antiprismatic
  • EPentagonal bipyramidal

Q6:

Nitrogen dioxide contains an unpaired electron and has trigonal planar electron-pair geometry.

Which type of hybridized orbital does the unpaired electron occupy?

  • Asp2
  • Bsp3d2
  • Csp3d
  • Dsp
  • Esp3

Which term best describes the magnetic behavior of this molecule?

  • ANonmagnetic
  • BAntiferromagnetic
  • CParamagnetic
  • DFerromagnetic
  • EDiamagnetic

Q7:

Which of the following accurately represents the molecular geometry for the carbon atoms in CH26 (ethane), CH24 (ethene), and CH22 (ethyne)?

  • ATetrahedral, planar, and linear respectively
  • BLinear, linear, and planar respectively
  • CTetrahedral, linear, and planar respectively
  • DLinear, tetrahedral, and planar respectively

Q8:

A match may be ignited by the reaction of ClO3 and PS43 when the match is struck. The Lewis structures of these species are as shown.

P P S P S P S Cl O O O

Which term best describes the bonding geometry around the P atoms in PS43?

  • ATetrahedral
  • BTrigonal pyramidal
  • CTrigonal planar
  • DT-shaped
  • EBent

Which term best describes the geometry of the electron pairs around the Cl atom in ClO3?

  • ASquare planar
  • BTrigonal planar
  • CSeesaw
  • DTrigonal pyramidal
  • ETetrahedral

What is the hybridization of the P atoms in PS43?

  • Asp3
  • Bsp2
  • Csp
  • Dsp3d
  • Esp3d2

What is the hybridization of the Cl atom in ClO3?

  • Asp
  • Bsp3d
  • Csp2
  • Dsp3d2
  • Esp3

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