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  • Question
  • The purest form of iron is


  • Options
  • A. wrought iron
  • B. steel
  • C. pig iron
  • D. nickel steel

  • Correct Answer
  • wrought iron 

    Explanation

    Wrought Iron is the purest form of iron. It contains 0.12 to 0.25% carbon and so it is the purest form of iron.

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    Chemistry problems


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    • 1. The market structure called monopoly exists where there is exactly ______ seller in any market.

    • Options
    • A. 1
    • B. 2
    • C. 5
    • D. 10
    • Discuss
    • 2. The partnership form of business organization is

    • Options
    • A. only two shares
    • B. more than two shares
    • C. no share
    • D. doesn't exist
    • Discuss
    • 3. The factors that affect worker productivity include

    • Options
    • A. expenditures for best practices training
    • B. base pay increases
    • C. the size of incentive payments per non-defective pair
    • D. All of the above
    • Discuss
    • 4. What is the best definition of the term cottage industry?

    • Options
    • A. goods are produced at home
    • B. group of cottages that serves as factory
    • C. people of same colony work at same place
    • D. people work at industries leaving their homes
    • Discuss
    • 5. The demand curve facing a perfectly competitive firm is
    • Discuss
    • 6. Hydrogen bomb is based on the principle of

    • Options
    • A. nuclear fission
    • B. nuclear fusion
    • C. natural radioactivity
    • D. artificial radioactivity
    • Discuss
    • 7. What is the structure of IF7 ?

    • Options
    • A. Triagonal bipyramid
    • B. Pentagonal bipyramid
    • C. Square pyramid
    • D. tetrahedral
    • Discuss
    • 8. Which of the following is a non metal that remains liquid at room temperature ?

    • Options
    • A. Chlorine
    • B. Phosphorous
    • C. Bromine
    • D. Helium
    • Discuss
    • 9. When formaldehyde and potassium hydroxide are heated , we get

    • Options
    • A. Acetylene
    • B. Methyl alcohol
    • C. Methane
    • D. Ethyl formate
    • Discuss
    • 10. Name the Scientist who stated that matter can be converted into energy

    • Options
    • A. Boyle
    • B. Lavoisier
    • C. Avogadro
    • D. Einstein
    • Discuss


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