Practice test

Atomic structure - Test Set 3

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Name the British chemist who presented his atomic theory in 1808, on conservation of mass and law of definite proportions, which was a turning point in the study of matter.
    1. Proust
    2. Lavoisier
    3. Ernest Rutherford
    4. John Dalton
    View explanation

    Sign In to See Explanations. Sign Up Here

  2. Question 2

    Who provided the basic theory about the 'Nature of Matter'?
    1. John Milton
    2. John Dalton
    3. Mendel
    4. Lavoisier
    View explanation

    Sign In to See Explanations. Sign Up Here

  3. Question 3

    In the Rutherford atomic model, alpha particles are projected onto ____ ?
    1. Gold
    2. Silver
    3. Titanium
    4. Aluminium
    View explanation

    Sign In to See Explanations. Sign Up Here

  4. Question 4

    What was discovered as a result of Rutherford's alpha scattering experiment?
    1. neutron
    2. proton
    3. nucleus in atom
    4. electron
    View explanation

    Sign In to See Explanations. Sign Up Here

  5. Question 5

    According to Bohr's model of Atom, what happens when an electron absorbs a energy of photon?
    1. It stays in the same orbit but oscillates rapidly.
    2. It emits light energy.
    3. It goes to the inner orbit.
    4. It moves to the next outer orbit.
    View explanation

    Sign In to See Explanations. Sign Up Here

  6. Question 6

    NDA 2020
    In atom, neutron was discovered by
    1. JJ Thomson
    2. Chadwick
    3. Rutherford
    4. Goldstein
    View explanation

    Sign In to See Explanations. Sign Up Here

  7. Question 7

    SSC Multitasking 2014
    Atomic theory of matter was given by
    1. Avogadro
    2. Dalton
    3. Newton
    4. Bohr
    View explanation

    Sign In to See Explanations. Sign Up Here

  8. Question 8

    UPRO/ARO (Mains) 2017
    Which one is a fundamental particle
    1. Neutron
    2. Proton
    3. π - meson
    4. Quark
    View explanation

    Sign In to See Explanations. Sign Up Here

  9. Question 9

    BPSC (Pre) 2018
    Which of the following elements does not contain neutrons?
    1. Oxygen
    2. Nitrogen
    3. Hydrogen
    4. None of the above
    View explanation

    Sign In to See Explanations. Sign Up Here

  10. Question 10

    RRB NTPC 2016
    The nucleus of hydrogen atom is made of
    1. only 1 proton
    2. proton, neutron and electron
    3. 2 electrons and 1 proton
    4. nothing
    View explanation

    Sign In to See Explanations. Sign Up Here

  11. Question 11

    SSC CHSL (10 + 2) 2018
    Charge on proton is equal to the charge on ………
    1. electron
    2. positron
    3. neutron
    4. alpha particle
    View explanation

    Sign In to See Explanations. Sign Up Here

  12. Question 12

    BPSC (Pre) 2018
    Which of the following elements does not contain neutrons?
    1. Oxygen
    2. Nitrogen
    3. Hydrogen
    4. Copper
    View explanation

    Sign In to See Explanations. Sign Up Here

  13. Question 13

    NDA 2020
    Atomic mass of an element is equal to the sum of number of
    1. electrons and protons only
    2. protons and neutrons only
    3. electrons and neutrons only
    4. electrons, protons and neutrons
    View explanation

    Sign In to See Explanations. Sign Up Here

  14. Question 14

    RRB NTPC 2017
    The presence of which of the following makes substance good conductor of electricity?
    1. Positron
    2. Electron
    3. Neutron
    4. Proton
    View explanation

    Sign In to See Explanations. Sign Up Here

  15. Question 15

    SSC CHSL (10 + 2) 2018
    Mass number is always equal to ………
    1. number of protons
    2. number of neutrons
    3. sum of number of protons and number of electrons
    4. sum of number of protons and number of neutrons
    View explanation

    Sign In to See Explanations. Sign Up Here

  16. Question 16

    SSC CGL 2013
    Who is the founder of quantum theory of radiation?
    1. Einstein
    2. Bohr
    3. Planck
    4. S N Bose
    View explanation

    Sign In to See Explanations. Sign Up Here

  17. Question 17

    CDS 2017
    The plum pudding model of an atom (electron) was propounded by
    1. Antoine Lavoisier
    2. J.J. Thomson
    3. Ernest Rutherford
    4. Robert Boyle
    View explanation

    Sign In to See Explanations. Sign Up Here

  18. Question 18

    SSC CGL 2013
    When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. They emit light, which we can observe in
    1. Raman spectra
    2. absorption spectra
    3. emission spectra
    4. fluorescence
    View explanation

    Sign In to See Explanations. Sign Up Here

  19. Question 19

    SSC CGL 2013
    Rutherford’s scattering experiment proved the presence of
    1. atoms in all matter
    2. electrons in atoms
    3. neutrons in atoms
    4. nucleus in atoms
    View explanation

    Sign In to See Explanations. Sign Up Here

  20. Question 20

    SSC CHSL (10 + 2) 2018
    Which statement(s) is/are correct regarding Dalton's Atomic theory?
    I. All matters are made of very tiny particles.
    II. Atoms of different elements have different masses and chemical properties.
    III. The relative number of atoms is variable in any compound.
    1. Only I and II
    2. Only I and III
    3. Only II and III
    4. All I, II and III
    View explanation

    Sign In to See Explanations. Sign Up Here