Students should refer to Worksheets Class 11 Chemistry Structure of Atom Chapter 2 provided below with important questions and answers. These important questions with solutions for Chapter 2 Structure of Atom have been prepared by expert teachers for Class 11 Chemistry based on the expected pattern of questions in the class 11 exams. We have provided Worksheets for Class 11 Chemistry for all chapters on our website. You should carefully learn all the important examinations questions provided below as they will help you to get better marks in your class tests and exams.
Structure of Atom Worksheets Class 11 Chemistry
Question. Which of the following sets of quantum numbers represents the highest energy of an atom?
(a) n = 3, l = 0, m = 0, s = +1/2
(b) n = 3, l = 1, m = 1, s = +1/2
(c) n = 3, l = 2, m = 1, s = +1/2
(d) n = 4, l = 0, m = 0, s = +1/2
Answer
C
Question. Which hydrogen-like species will have same radius as that of Bohr orbit of hydrogen atom?
(a) n = 2, Li2+
(b) n = 2, Be3+
(c) n = 2, He+
(d) n = 3, Li2+
Answer
B
Question. Which of the following pair of ions have same paramagnetic moment?
(a) Cu+2, Ti+3
(b) Mn+2, Cu+2
(c) Ti+4, Cu+2
(d) Ti+3, Ni+2
Answer
A
Question. According to Aufbaus principle, which of the three 4d, 5p and 5s will be filled with electrons first
(a) 4d
(b) 5p
(c) 5s
(d) 4d and 5s will be filled simultaneously
Answer
C
Question. The frequency of a wave of light is 12 × 1014 s-1. The wave number associated with this light
(a) 5 × 10-7m
(b) 4 × 10-8cm-1
(c) 2 × 10-7m-1
(d) 4 × 104cm-1
Answer
D
Question. In a hydrogen atom, if energy of an electron in ground state is 13.6 eV, then that in the 2nd excited state is
(a) 1.51 eV
(b) 3.4 eV
(c) 6.04 eV
(d) 13.6 eV
Answer
A
Question. The charge to mass ratio of α – particles is approximately …… the charge to mass ratio of protons
(a) Twice
(b) Half
(c) Four times
(d) Six times
Answer
B
Question. The maximum number of electrons that can be accommodated in fifth energy level is
(a) 10
(b) 25
(c) 50
(d) 32
Answer
C
Question. The credit of discovering neutron goes to
(a) Rutherford
(b) Thomson
(c) Goldstein
(d) Chadwick
Answer
D
Question. A sub-shell with n = 6 , l = 2 can accommodate a maximum of
(a) 12 electrons
(b) 36 electrons
(c) 10 electrons
(d) 72 electrons
Answer
C