101) Which of the following electromagnetic radiation has more frequency?

A) Cosmine rays
B) X-rays
C) U.V. rays
D) Radio waves

102) Order of energy of orbitals

A) 3s >3p> 3d>4s
B) 3s<3p<3d <4s C) 3s >3p> 4s>3d
D) 3s<3p<4s<3d

103) The total number of atomic orbitals in third shell of an atom

A) 1
B) 3
C) 9
D) 18

104) Which is the least electronegative element among the following?

A) Lithium
B) Carbon
C) Nitrogen
D) Fluorine

105) 4f elements are called as

A) Transition elements
B) Alkaline earth metals
C) Actinoids
D) Lanthonoids