Lewis Structures for Formaldehyde
16 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is the correct way to draw a bond-line drawing of a molecule?

  • Draw all the atoms and bonds, including the H's connected to atoms other than C
  • Draw the C's and H's as far apart as possible
  • Show all C's and H's in the molecule
  • Only draw the bonds between the atoms, and omit the C's and H's (correct)

What change would be observed in the reaction of adding two hydrogen atoms to a molecule with a double bond?

  • The number of hydrogen atoms would increase by two (correct)
  • A new double bond would be formed
  • The double bond would be eliminated and replaced by a single bond
  • The number of hydrogen atoms would decrease by two

What type of chemical bond is formed when an electropositive element reacts with an electronegative element?

  • Metallic bond
  • Covalent bond
  • Ionic bond (correct)
  • Hydrogen bond

How is the polarity of a bond determined?

<p>By the difference in electronegativity between the two atoms (D)</p> Signup and view all the answers

What type of bond is formed in all organic compounds?

<p>Covalent bond (A)</p> Signup and view all the answers

What is the classification of a bond based on the difference in electronegativity between the two atoms?

<p>Polar covalent bond (D)</p> Signup and view all the answers

What is the definition of an atom's formal charge in a Lewis structure?

<p>The difference between the number of valence electrons in an isolated atom and the number of electrons assigned in the Lewis structure (D)</p> Signup and view all the answers

In a Lewis structure, what is the formula to calculate the formal charge on an atom?

<p>Total number of valence electrons in the free atom - total number of nonbonding electrons - 1/2 (total number of bonding electrons) (C)</p> Signup and view all the answers

What does the sum of the formal charges of atoms in a molecule or ion need to equal?

<p>Charge on the molecule or ion (D)</p> Signup and view all the answers

In a Lewis structure, what does a negative formal charge on an atom indicate?

<p>Deficiency of electrons (A)</p> Signup and view all the answers

According to the rules for drawing Lewis structures, which statement is correct?

<p>A Lewis structure with no formal charges is preferred over one with formal charges. (C)</p> Signup and view all the answers

Which of the following is the most plausible Lewis structure for CHâ‚‚O?

<p>Hâ‚‚C=O (A)</p> Signup and view all the answers

In the Lewis structure for CHâ‚„O, how many lone pairs of electrons should be assigned to the oxygen atom?

<p>3 lone pairs (C)</p> Signup and view all the answers

When drawing triple bonds in organic molecules, which statement is correct?

<p>Triple bonds should be drawn in a straight line. (D)</p> Signup and view all the answers

How many hydrogen atoms are connected to each carbon atom in the molecule with 14 carbon atoms mentioned in the text?

<p>The information cannot be determined from the text. (A)</p> Signup and view all the answers

When drawing zigzag patterns for carbon chains, which statement is correct?

<p>The direction in which you start drawing the zigzag does not matter. (C)</p> Signup and view all the answers

More Like This

Chemistry: Lewis Structures and Bonding
12 questions
Lewis Structures and Geometry Quiz
34 questions
Chemistry: Lewis Structures & VSEPR
5 questions

Chemistry: Lewis Structures & VSEPR

WellReceivedSquirrel7948 avatar
WellReceivedSquirrel7948
Use Quizgecko on...
Browser
Browser