General Rule: Like Dissolves Like
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Questions and Answers

How many covalent bonds can a carbon atom form with four hydrogen atoms?

  • Three
  • Two
  • Four
  • One (correct)
  • Why does a carbon atom always form four covalent bonds?

  • It has six valence electrons
  • It has two valence electrons
  • It has eight valence electrons
  • It has four valence electrons (correct)
  • If a carbon atom forms five covalent bonds, what does this indicate?

  • It becomes a different element
  • It is incorrect as carbon can only form four covalent bonds (correct)
  • It is more stable than usual
  • It will have fewer valence electrons than normal
  • What happens if a carbon atom forms three covalent bonds?

    <p>It still needs to form one more bond to complete its valence shell</p> Signup and view all the answers

    If a carbon atom forms only two covalent bonds, what effect does this have on its reactivity?

    <p>It makes it more reactive</p> Signup and view all the answers

    What is one reason that carbon can form many different compounds?

    <p>Its ability to form stable carbon-carbon bonds</p> Signup and view all the answers

    In a carbon-hydrogen or a carbon-carbon bond, where is the electron pair shared?

    <p>Almost equally by the nuclei of the atoms forming the bond</p> Signup and view all the answers

    Which type of bond involves nuclei sharing the electron pair almost equally?

    <p>Carbon-hydrogen bond</p> Signup and view all the answers

    What type of bond does ethane contain?

    <p>Carbon-carbon bond</p> Signup and view all the answers

    According to the general rule “like dissolves like,” what type of compounds will not form a solution?

    <p>Nonpolar and polar compounds</p> Signup and view all the answers

    Why is it mentioned that carbon can form many different compounds?

    <p>Due to its capability to make various types of bonds</p> Signup and view all the answers

    Which type of compounds is mentioned as an example that will not form a solution?

    <p>Ionic compounds</p> Signup and view all the answers

    What is the guiding principle behind the statement 'like dissolves like'?

    <p>Similar substances have similar solubilities</p> Signup and view all the answers

    Why do nonpolar compounds and polar compounds not form a solution according to the general rule?

    <p>Because they have different polarities</p> Signup and view all the answers

    Which type of compounds exhibit a stronger tendency to form solutions based on the 'like dissolves like' concept?

    <p>Ionic and polar compounds</p> Signup and view all the answers

    What is the recommended approach for numbering carbon atoms in a parent carbon chain?

    <p>Start from the end closest to the first carbon atom with an alkyl or other group</p> Signup and view all the answers

    Why is it important to number carbon atoms in a parent carbon chain?

    <p>It affects the IUPAC naming of organic compounds</p> Signup and view all the answers

    If a compound has multiple alkyl groups, how should carbon atoms be numbered?

    <p>Start numbering from the end closest to any alkyl group</p> Signup and view all the answers

    In which situation would it be acceptable to randomly assign numbers to carbon atoms in a chain?

    <p>When there are no alkyl groups present</p> Signup and view all the answers

    What would be the consequence of starting numbering from the end farthest from any functional group?

    <p>It would lead to incorrect IUPAC naming</p> Signup and view all the answers

    What is the name of the parent alkane in the provided text?

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

    How many carbon atoms are in the alkyl group mentioned in the text?

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

    Which compound is referred to as '2-methylpentane'?

    <p>55 CH3 44 CH2 33 CH2 22 CH 11 CH3 CH3</p> Signup and view all the answers

    In the text, how many hydrogen atoms are present in the alkyl group of methylpentane?

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

    Which compound has the longest carbon chain among the options given?

    <p>55 CH3 44 CH2 33 CH2 22 CH 11 C H3 CH3</p> Signup and view all the answers

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