atomic orbitals, multiple bonds,
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Questions and Answers

In a methane molecule, what type of bond is formed between the carbon atom and each hydrogen atom?

  • Pi (π) bond
  • Hydrogen bond
  • Sigma (σ) bond (correct)
  • Ionic bond

    • What is the hybridization state of the carbon atom in ethane, C2H6?

  • sp3 (correct)
  • sp2
  • s
  • sp

    • What happens to lone pairs of electrons in sp3 hybridized atoms?

  • They occupy specific d orbitals
  • They are shared equally between neighboring atoms
  • They occupy hybrid orbitals (correct)
  • They remain in their original atomic orbitals

    • What is the reason for the distortion in bond angles in molecules like ammonia and water?

    <p>Lone pairs occupying more space than bonding pairs</p> Signup and view all the answers

    Which of the following molecules exhibits sp3 hybridization?

    <p>$CCl_4$</p> Signup and view all the answers

    How many sigma (σ) bonds are formed when two ethane molecules react to form a dimer?

    <p>6</p> Signup and view all the answers

    What atomic orbitals are used for sp3d hybridization?

    <p>$s$, $p$, $d$</p> Signup and view all the answers

    What is the geometry around a nitrogen atom in ammonia (NH3)?

    <p>$107.3^{\ ext{o}}$ angle</p> Signup and view all the answers

    What type of bonds are formed between carbon and hydrogen atoms in ethane?

    <p>$\sigma$ bonds</p> Signup and view all the answers

    How do the bond angles in water molecules (H2O) differ from ideal tetrahedral angles?

    <p>$104.5^{\ ext{o}}</p> Signup and view all the answers

    What type of bond is formed between the carbon atoms in ethane, C2H6?

    <p>Sigma bond</p> Signup and view all the answers

    How many sigma bonds are formed between two ethane molecules when they react to form a dimer?

    <p>4</p> Signup and view all the answers

    What is the hybridization state of the nitrogen atom in ammonia (NH3)?

    <p>sp3</p> Signup and view all the answers

    Which molecule has bond angles slightly smaller than ideal tetrahedral angles?

    <p>H2O</p> Signup and view all the answers

    In the structure of methane, CH4, what type of orbitals overlap to form C-H sigma bonds?

    <p>sp3 orbitals of carbon and 1s orbitals of hydrogen</p> Signup and view all the answers

    Which hybridization state allows an orbital to hold a lone pair of electrons?

    <p>sp3</p> Signup and view all the answers

    What is the geometry around the oxygen atom in water (H2O)?

    <ul> <li>bent</li> </ul> Signup and view all the answers

    In a methane molecule, how many sigma (σ) bonds are formed between the carbon atom and each hydrogen atom?

    <p>1</p> Signup and view all the answers

    In ethane (C2H6), how many sigma (σ) bonds are formed between two carbon atoms?

    <p>2</p> Signup and view all the answers

    Which molecule has an sp3 hybridized nitrogen atom with one hybrid orbital occupied by a lone pair of electrons?

    <p>Ammonia (NH3)</p> Signup and view all the answers

    What type of bond is formed between a carbon atom and a hydrogen atom in ethane (C2H6)?

    <p>σ bond</p> Signup and view all the answers

    What is the ideal bond angle for perfect tetrahedra?

    <p>$109.5°$</p> Signup and view all the answers

    Which molecule has an oxygen atom that is sp3 hybridized with two hybrid orbitals occupied by lone pairs and two by bonding pairs?

    <p>$\text{H}_2\text{O}$</p> Signup and view all the answers

    What allows structures with lone pairs to have bond angles slightly distorted from the ideal?

    <p>$sp^3$ hybridization</p> Signup and view all the answers

    How many sigma (σ) bonds are formed when two ethane molecules react to form a dimer?

    <p>$4$</p> Signup and view all the answers

    What is the geometry around the nitrogen atom in ammonia (NH3)?

    <p>$107.3^\circ$</p> Signup and view all the answers

    Which molecule exhibits sp3 hybridization with one hybrid orbital occupied by a lone pair, similar to ammonia?

    <p>$\text{PCl}_3$</p> Signup and view all the answers

    What type of hybridization occurs in the carbon atom of a methane molecule, CH4?

    <p>sp3 hybridization</p> Signup and view all the answers

    In the ethane molecule, how many σ bonds are formed between two carbon atoms?

    <p>Seven σ bonds</p> Signup and view all the answers

    What type of bond is formed between an sp3 orbital of one carbon atom and an sp3 orbital of a second carbon atom in ethane?

    <p>σ bond</p> Signup and view all the answers

    Which molecule has its nitrogen atom surrounded by three bonding pairs and a lone pair of electrons in a tetrahedral arrangement?

    <p>NH3</p> Signup and view all the answers

    What is the shape of the molecular structure of water, H2O?

    <p>Bent</p> Signup and view all the answers

    Which molecule shows bond angles slightly smaller than the ideal tetrahedral angles in its structure?

    <p>NH3</p> Signup and view all the answers

    What type of hybridization is observed in molecules like CCl4, PCl3, and NCl3?

    <p>sp3 hybridization</p> Signup and view all the answers

    How many σ bonds are formed between a carbon atom and each hydrogen atom in a methane molecule?

    <p>One σ bond</p> Signup and view all the answers

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