Chemistry Questions Answers

  • 43. The nuclear particles which are assumed to hold the nucleons together are ?

    1. positrons
    2. neutrons
    3. electrons
    4. mesons
    Answer And Explanation

    Answer: Option D

  • 44. The metal that is used as a catalyst in the hydrogenation of oils is ?

    1. Pb
    2. Ni
    3. Cu
    4. Pt
    Answer And Explanation

    Answer: Option B

  • 45. The most abundant element in the earth's crust is ?

    1. Aluminium
    2. Nitrogen
    3. Silicon
    4. Oxygen
    Answer And Explanation

    Answer: Option D

  • 46. The most abundant rare gas in the atmosphere is ?

    1. He
    2. Ne
    3. Ar
    4. Xe
    Answer And Explanation

    Answer: Option C

  • 47. The ore which is found in abundance in India is

    1. monazite
    2. bauxite
    3. magnetite
    4. fluorspar
    Answer And Explanation

    Answer: Option A

  • 48. The luster of a metal is due to :

    1. high polishing
    2. high density
    3. chemical inertness
    4. presence of free electrons
    Answer And Explanation

    Answer: Option D

  • 49. The most malleable metal is

    1. platinum
    2. silver
    3. gold
    4. iron
    Answer And Explanation

    Answer: Option C