The absolute value of charge on electron was determined by ________ ?

Related Mcqs:

1. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

   A. 0.33 nm
   B. 0.34 nm
   C. 0.35 nm
   D. 0.36 nm

2. Charge of electron was measured by__________________?

   A. J.J Thomson
   B. Millikan
   C. Rutherford
   D. Perrin

3. An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

   A. Group IA
   B. Group IB
   C. Group VIIA
   D. Group VIII

4. The value of e/m ratio of electron is________________?

   A. 6.02 x 1023 C/kg
   B. 1.7588 x 1020 C/kg
   C. 9.1095 x 10-31 C/kg
   D. 1.7588 x 1011 C/kg

5. Which of the following will have highest value of electron affinity_________________?

   A. F
   B. Cl
   C. Br
   D. I

6. Higher value of electron affinity means__________________?

   A. Atom will lose electron easily
   B. Atom will gain electron easily
   C. Atom may form di-positive ion
   D. The reason is unknown

7. Electron was discovered by?

   A. Michael Faraday
   B. James Maxwell
   C. Yuri Gagarin
   D. J.J Thomson

   Submitted by: Shahid Sargarh

8. The magnetic quantum number (QN) has its values determined directly by the value of_______________?

   A. Principal (QN)
   B. Azimuthal (QN)
   C. Spin (QN)
   D. Both A & B

9. The value of activation energy is primarily determined by_______________?

   A. Temperature
   B. Effective collision
   C. Concentration of reactants
   D. Chemical nature of reactants and products

10. Quantum number which tells the energy of electron is________________?

    A. n
    B. 1
    C. m
    D. s