- (A) Aufbau principle
- (B) Pauli exclusion principle
- (C) Hund's rule
- (D) Periodic law
Everyday Science Mcqs
- (A) radio, visible, infrared, ultraviolet, x-ray, gamma ray
- (B) radio, infrared, visible, x-ray, gamma ray, ultraviolet
- (C) visible, radio, infrared, ultraviolet, x-ray, gamma ray
- (D) radio, infrared, visible, ultraviolet, x-ray, gamma ray
- (A) visible light
- (B) x-rays
- (C) infrared light
- (D) ultraviolet radiation
- (A) gamma rays
- (B) X-rays
- (C) Ultra-violet radiation
- (D) radio waves
- (A) Red light
- (B) Sound waves
- (C) X-Rays
- (D) Photon
- (A) is always less than first ionization energy
- (B) is always greater than first ionization energy
- (C) is equal to the first ionization energy
- (D) may be greater or less than the first ionization energy depending on the nature of the element
- (A) molecules are stable
- (B) molecules are unstable
- (C) nuclei are stable
- (D) nuclei are unstable
- (A) depends on the pressure in the discharge tube
- (B) depends on the metal used as cathode
- (C) depends on the gas used in the discharge tube
- (D) does not depend on the nature of the gas used in the discharge tube
- (A) higher melting point then molecular crystals
- (B) lower melting point then molecular crystals
- (C) discrete molecules linked by Van der waals forces
- (D) hydrogen bonding
- (A) increase inter-molecular interactions
- (B) increasing potential energy of molecules
- (C) increasing kinetic energy of molecules
- (D) decreasing surface tension
