Rutherfords planet like structure was defective and unsatisfactory because_________________?

Related Mcqs:

1. On increasing the temperature the rate of reaction increases mainly because_________________?

   A. The activation energy of the reaction increases
   B. Concentration of the reacting molecules increases
   C. Collision frequency increases
   D. None of these

2. Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?

   A. they have an electrophilic carbon
   B. they have an electrophilic carbon & a good leaving group
   C. they have an electrophilic carbon & a bad leaving group
   D. they have a nucleophilic carbon & a good leaving group

3. Which of the following will not form crystalline structure with opporitely charged ions_________________?

   A. H+
   B. H-
   C. Mg2+
   D. Ca2+

4. The structure of H2O2 is_______?

   A. Planar
   B. Non- polar
   C. Spherical
   D. Linear

   Submitted by: Muhammad Ali Kunbhar

5. All of the following were theorized by Bohr in his description of the atom except__________________?

   A. Angular momentum of electrons in multiples of h/2?
   B. Electrons revolve in discrete circular orbits
   C. Energy of each electron is directly proportional to n2
   D. Electrons radiate energy continuously in a given orbit.

6. Space around nucleus where finding probability of electrons is maximum is called ____________________?

   A. Orbital
   B. Orbit is elliptical
   C. subshell
   D. Electron cloud

7. Atomic orbits having same energy are called________________?

   A. Degenerate orbitals
   B. Bonding molecular orbitals
   C. Anti bonding molecular orbitals
   D. Half filled orbitals

8. Splitting of spectral lines when atoms are subjected to strong electric filed is called_________________?

   A. Zeeman effect
   B. Stark effect
   C. Photoelectric effect
   D. Compton effect

9. The relationship between energy of a photon of light and its frequency is given by________________?

   A. de-Broglie duel nature of matter
   B. Bohrs model
   C. Plancks Quantum theory
   D. Rutherfords atomic model

10. _______________ can expel proteons from paraffins ?

    A. Electron
    B. Positron
    C. Neutron
    D. None of above has such capability