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ATOMIC STRUCTURE

This is a discussion on ATOMIC STRUCTURE within the Classes forums, part of the Students Corner category; chemistry: FSC level entry test notes Chemistry: ATOMIC STRUCTURE Neutron was discovered by A) Chadwick (B) Bohr (C) Rutherford (D) ...

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    Special Member mis nazma's Avatar
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    ATOMIC STRUCTURE

    chemistry: FSC level entry test notes

    Chemistry:


    ATOMIC STRUCTURE



    1. Neutron was discovered byA) Chadwick
      (B) Bohr
      (C) Rutherford
      (D) Plank
    2. The e/m value for positive rays is maximum for:
      (A) Oxygen(B) Nitrogen(C) Helium(D) Hydrogen
    3. The nature of positive rays depend on:

      1. (A) Nature of discharge tube
      2. (B) Nature of resident gas
      3. (C) Nature of electrode
      4. (D) All of the above

    4. Which of the following was discovered first:

      1. (A) Charges to mass ratio of electrons
      2. (B) Mass of electron
      3. (C) Charge of electron
      4. (D) All of above at same time

    5. Which of the following particles has longest wavelength, if theyhave same speed:
      (A) Proton
      (B) Neutron
      (C) Electron(D) Positron




    6. Maximum potential energy that an electron can have within theatom is:

    1. (A) Equal to zero
    2. (B) Less than zero
    3. (C) Greater than zero
    4. (D) Infinite


    1. Alpha rays consist of:

      1. (A) Neutron
      2. (B) helium nucleus
      3. (C) Protons
      4. (D) Hydrogen nucleus

    2. Charge to mass ratio of electron was discovered by:

      1. (A) Millikan
      2. (B) Rutherford
      3. (C) J. J. Thomson
      4. (D) Chadwick

    3. When an electric current is passed through discharge tube at lowpressure, cathode rays are emitted from cathode these rays consistof:

      1. (A) Alpha rays
      2. (B) Negative particles
      3. (C) Electromagnetic rays
      4. (D) Positive particles


    10. Charge on electron was discovered by:

    1. (A) Millikan
    2. (B) Crook
    3. (C) Neil Bohr
    4. (D) Rutherford

    11. Proton was discovered by:
    (A) Chadwick




    1. (B) J. J. Thomson
    2. (C) Millikan
    3. (D) Goldstein

    12. Which one of the following particles has a mass 1/1836 time,that of hydrogen?

    1. (A) Neutron
    2. (B) Proton
    3. (C) Electron
    4. (D) Positron

    13. Negatively charged particle nature of cathode rays was first
    demonstrated in 1895 by:

    1. (A) Millikan
    2. (B) J. Perrin
    3. (C) Hittrof
    4. (D) J. J. Thomson

    14. With the reference of e/m ratio of anode rays, the e/m ratio of
    cathode rays is:

    1. (A) Greater
    2. (B) Same
    3. (C) Smaller
    4. (D) Not fixed

    15. Anode is the surface on which probability of finding electronis:

    1. (A) 50%
    2. (B) Less than 10%
    3. (C) More than 95%
    4. (D) Zero




    Answers:
    1) A2) D3) B4) A5) C6) B7) B8) C9) B

    1. 10) A
    2. 11) D
    3. 12) C
    4. 13) B
    5. 14) A
    6. 15) D
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    Re: ATOMIC STRUCTURE

    Ye Kya Hai

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    iTT Student red mano's Avatar
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    Huh Re: ATOMIC STRUCTURE

    waoo i need thiz chapter mcqs. GREAT

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