Chemistry Questions Answers

  • 64. The main chemical constituent of clay is ?

    1. aluminium silicate
    2. zeolites
    3. aluminium borosilicate
    4. silicon oxide
    Answer And Explanation

    Answer: Option A

  • 65. Which element found in all organic compounds ?

    1. carbon
    2. nitrogen
    3. calcium
    4. none of them
    Answer And Explanation

    Answer: Option A

  • 66. Alloys made with mercury as one metal are called ?

    1. mixtures
    2. emulsions
    3. solders
    4. amalgams
    Answer And Explanation

    Answer: Option D

  • 67. All noble gases are ?

    1. colourless
    2. colourless
    3. colourless and odourless
    4. colourless and but have odour
    Answer And Explanation

    Answer: Option C

  • 68. What is the hardest form of carbon ?

    1. coke
    2. graphite
    3. charcoal
    4. diamond
    Answer And Explanation

    Answer: Option D

  • 69. What is hottest part of the gas flame is called ?

    1. blue zone
    2. luminous zone
    3. dark zone
    4. non-luminous zone
    Answer And Explanation

    Answer: Option D

  • 70. Atomic number of an element gives

    1. the number of nucleons in its atom
    2. the number of electrons in its atom
    3. the weight of the atom of the element
    4. the total number of elementary particles in its atom
    Answer And Explanation

    Answer: Option B