Chemistry Questions Answers

  • 36. Which of the primary component of natural gas?

    1. Ethane
    2. Propane
    3. Methane
    4. Butane
    Answer And Explanation

    Answer: Option C

  • 37. The metal used to recover copper from a solution of copper sulphate is ?

    1. Na
    2. Ag
    3. Hg
    4. Fe
    Answer And Explanation

    Answer: Option D

  • 38. Which gas is used in fire extinguishers ?

    1. Carbon dioxide
    2. Nitrogen oxide
    3. Carbon monoxide
    4. Sulpher dioxide
    Answer And Explanation

    Answer: Option A

  • 39. The metallurgical process in which a metal is obtained in a fused state is called ?

    1. roasting
    2. calcinations
    3. smelting
    4. froth floatation
    Answer And Explanation

    Answer: Option C

  • 40. Which of the following is produced during the formation of photochemical smog ?

    1. Nitrogen Oxides
    2. Hydrocarbons
    3. Methane
    4. Ozone
    Answer And Explanation

    Answer: Option D

  • 41. Which of the following gas is used in cigarette lighters ?

    1. Butane
    2. Propane
    3. Methane
    4. Ethane
    Answer And Explanation

    Answer: Option A

  • 42. Biogas majorly contains ?

    1. Ethane
    2. Methane
    3. Hydrogen
    4. CO
    Answer And Explanation

    Answer: Option B