9th Standard English Medium Science Subject Chemical Bonding Book Back 5 Mark Questions with Solution Part - I

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25
  1. List down the differences between Ionic and Covalent compounds.

  2. Give an example for each of the following statements.
    a. A compound in which two Covalent bonds are formed
    b. A compound in which one ionic bond is formed
    c. A compound in which two Covalent and one Coordinate bonds are formed
    d. A compound in which three covalent bonds are formed
    e. A compound in which Coordinate bond is formed

  3. Identify the incorrect statement and correct them.
    a. Like covalent compounds, Coordinate compounds also contain charged particles (ions), so they are good conductors of electricity.
    b. Ionic bond is a weak bond when compared to Hydrogen bond.
    c. Ionic or electrovalent bonds are formed by mutual sharing of electrons between atoms.
    d. Loss of electrons is called Oxidation and Gain of electron is called Reduction.
    e.The electrons which are not involved in bonding are called valence electrons.

  4. Discuss in brief about the properties of Coordinate covalent compounds.

  5. Find the oxidation number of the elements in the following compounds.
    a. C in CO2
    b. Mn in MnSO4
    c. N in HNO3

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