logo

CuriousTab

CuriousTab

Discussion


Home General Knowledge Chemistry Comments

  • Question
  • The reactivity of an atom arises from


  • Options
  • A. the existence of unpaired electrons in the valence shell
  • B. the potential energy of the valence shell
  • C. the average distance of the outermost electron shell from the nucleus
  • D. the sum of the potential energies of all the electron shells

  • Correct Answer
  • the existence of unpaired electrons in the valence shell 

    Explanation

    The reactivity of an atom arises from the existence of unpaired electrons in the valence shell.

  • Tags: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO

    Chemistry problems


    Search Results


    • 1. Technically, tempera is paint in which the vehicle is in

    • Options
    • A. an emulsion
    • B. a pigment
    • C. an impasto
    • D. a ground
    • Discuss
    • 2. The bonds in the compound MgSO4 can be described as

    • Options
    • A. covalent
    • B. ionic
    • C. both A & B
    • D. None of the above
    • Discuss
    • 3. A colored ion generally indicates a

    • Options
    • A. transition metal
    • B. metalloid
    • C. large in size
    • D. Both B & C
    • Discuss
    • 4. An example of an extensive property of matter is

    • Options
    • A. Volume
    • B. Mass
    • C. Density
    • D. All the above
    • Discuss
    • 5. Monopotassium tartarate was used in

    • Options
    • A. Fertiliser
    • B. Explosives
    • C. Photography
    • D. Baking
    • Discuss
    • 6. The acid used in lead storage cells is

    • Options
    • A. Sulphuric acid
    • B. Nitric acid
    • C. Hydrochloric acid
    • D. Phosphoric acid
    • Discuss
    • 7. The number of electron levels in a magnesium atom is

    • Options
    • A. 3
    • B. 2
    • C. 1
    • D. 0
    • Discuss
    • 8. Arrange the following compounds in order of increasing acidity?

    • Options
    • A. o-cresol < phenol < o-nitrophtenol
    • B. phenol < o-nitrophtenol < o-cresol
    • C. o-nitrophtenol < o-cresol < phenol
    • D. None of the above
    • Discuss
    • 9. which of the following molecule contains a nonpolar covalent bond?

    • Options
    • A. Br2
    • B. CO2
    • C. CCl4
    • D. CO
    • Discuss
    • 10. Which kind of energy is stored in a chemical bond?

    • Options
    • A. Potential energy
    • B. Kinetic energy
    • C. Both A & B
    • D. None of the above
    • Discuss


    Comments

    There are no comments.

Enter a new Comment