CBSE Class 10 Science: Chapter 4 Carbon and its Compounds Quiz
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Questions and Answers

What type of bond is formed by the mutual sharing of electron pairs between two atoms in a molecule?

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

    • What is the electronic configuration of carbon?

  • 2, 6
  • 2, 8
  • 2, 4 (correct)
  • 2, 8, 4

    • What is the atomic number of carbon?

  • 6 (correct)
  • 12
  • 8
  • 14

    • Why can't carbon form an ionic bond?

    <p>It has a high ionization energy</p> Signup and view all the answers

    What provides a picture of bonding in molecules in terms of the shared pairs of electrons and octet rule?

    <p>Lewis structure</p> Signup and view all the answers

    How many electrons does carbon require to achieve the inert gas electronic configuration?

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

    Which property of carbon allows it to form long straight, branched, and ring structures?

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

    What is the general formula for saturated hydrocarbons (Alkanes)?

    <p>CnH2n+2</p> Signup and view all the answers

    What is the phenomenon in which an element exists in two or more physical states with similar chemical properties called?

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

    Which type of hydrocarbon has two carbon atoms connected by a triple bond?

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

    What is the main reason why most carbon compounds have low boiling and melting points?

    <p>Weak force of attraction between molecules</p> Signup and view all the answers

    Which type of hydrocarbon has the general formula CnH2n?

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

    What is the property that allows carbon to form stable multiple bonds with itself and with atoms of other elements?

    <p>Tetravalent Nature</p> Signup and view all the answers

    Which compound is an example of a saturated hydrocarbon (Alkane)?

    <p>$C_4H_{10}$</p> Signup and view all the answers

    What is the general formula for unsaturated hydrocarbons Alkenes?

    <p>CnH2n</p> Signup and view all the answers

    What is the atomic number of carbon?

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

    Why can't carbon form an ionic bond?

    <p>It requires a large amount of energy to remove four electrons</p> Signup and view all the answers

    What type of bond is formed by the mutual sharing of electron pairs between two atoms in a molecule?

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

    How many electrons does carbon require to achieve the inert gas electronic configuration?

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

    What provides a picture of bonding in molecules in terms of the shared pairs of electrons and octet rule?

    <p>Electron dot structure</p> Signup and view all the answers

    What is the general formula for unsaturated hydrocarbons Alkenes?

    <p>$C_{n}H_{2n}$</p> Signup and view all the answers

    What is the property that allows carbon to form long straight, branched, and ring structures?

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

    Which type of hydrocarbon has the general formula CnH2n+2?

    <p>Saturated Hydrocarbons (Alkanes)</p> Signup and view all the answers

    What is the phenomenon in which an element exists in two or more different physical states with similar chemical properties called?

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

    What type of hydrocarbon has the general formula CnH2n?

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

    What is the main reason why most organic compounds have low boiling and melting points?

    <p>Weak force of attraction between molecules</p> Signup and view all the answers

    What provides a picture of bonding in molecules in terms of the shared pairs of electrons and octet rule?

    <p>Electron Dot Structure</p> Signup and view all the answers

    Which compound is an example of an unsaturated hydrocarbon?

    <p>$C_2H_4$ (Ethene)</p> Signup and view all the answers

    Which allotrope of carbon has a structure consisting of sp2 hybridized carbon atoms arranged in a hexagonal lattice?

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

    Which allotrope of carbon has each carbon atom bonded to four other carbon atoms in a tetrahedral structure?

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

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