CBSE Class 11 Chemistry Chapter 2 Structure of Atom Multiple Choice Questions with Answers. MCQ Questions Class 11 Chemistry Structure of Atom with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Chemistry Structure of Atom MCQs with Answers to know their preparation level.
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MCQ Questions Class 11 Chemistry Structure of Atom with Answers - Set - 5
Question 1:
For given energy, E = 3.03 × 10–19 joules corresponding wavelength is (h = 6.626 × 10–34 J sec, c = 3 × 108 m/sec)
(a) 65.6 nm
(b) 6.56 nm
(c) 3.4 nm
(d) 656 nm
Correct Answer – (D)
Question 2 :
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between their wavelengths i.e., λ1 and λ2 will be
(a) λ1 = λ2
(b) λ1 = 2λ2
(c)λ1 = 4λ2
(d)λ1=1/2 λ2
Correct Answer – (B)
Question 3 :
The value of Planck’s constant is 6.63 × 10–34 Js. The speed of light is 3 × 1017 nm s–1. Which value is closest to the wavelength in nanometer of a quantum of light with frequency f 6 × 1015 s–1?
(a) 50 |
(b) 75
(c) 10
(d) 25
Correct Answer – (A)
Question 4 :
The number of protons, neutrons and electrons in 17571Lu, respectively, are
(a) 71, 104 and 71
(b) 104, 71 and 71
(c) 71, 71 and 104
(d) 175, 104 and 71
Correct Answer – (A)
Question 5 :
Which one of the following is not isoelectronic with O2–?
(a) Tl+
(b) Na+
(c) N3–
(d) F–
Correct Answer – (A)
MCQ Questions Class 11 Chemistry Structure of Atom with Answers
Question 6 :
The value of Planck’s constant is 6.63 × 10–34 J s. The velocity of light is 3.0 × 108 m s–1. Which value is closest to the wavelength in nanometers of a quantum of light with requency of 8 × 1015 s–1 ?
(a) 2 × 10–25
(b) 5 × 10–18
(c) 4 × 101
(d) 3 × 107
Correct Answer – (C)
Question 7 :
According to law of photochemical equivalence the energy absorbed (in ergs/mole) is given as (h = 6.62 × 10–27 ergs, c = 3 × 1010 cm s–1, NA = 6.02 × 1023 mol–1)
(a) 1.196 ×108λ
(b) 2.859 105 ×λ
(c) 2.859 ×1016λ
(d) 1.196 ×1016λ
Correct Answer – (A)
Question 8 :
Calculate the energy in joule corresponding to light of wavelength 45 nm. (Planck’s constant, h = 6.63 × 10–34 J s, speed of light, c = 3 × 108 m s–1)
(a) 6.67 × 1015
(b) 6.67 × 1011
(c) 4.42 × 10–15
(d) 4.42 × 10–18
Correct Answer – (D)
Question 9 :
Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
(a) Brackett series
(b) Lyman series
(c) Balmer series
(d) Paschen series
Correct Answer – (C)
Question 10 :
The ion that is isoelectronic with CO is
(a) CN–
(b) N2 +
(c) O2–
(d) N2 –
Correct Answer – (A)
- NCERT Solutions Class 11 Chemistry Chapter 1 : Some Basic Concepts of Chemistry
- NCERT Solutions Class 11 Chemistry Chapter 2 : Structure Of The Atom
- NCERT Solutions Class 11 Chemistry Chapter 3 : Classification of Elements and Periodicity in Properties
- NCERT Solutions Class 11 Chemistry Chapter 4 : Chemical Bonding and Molecular Structure
- NCERT Solutions Class 11 Chemistry Chapter 5 : States of Matter
- NCERT Solutions Class 11 Chemistry Chapter 6 : Thermodynamics
- NCERT Solutions Class 11 Chemistry Chapter 7 : Equilibrium
- NCERT Solutions Class 11 Chemistry Chapter 8 : Redox Reactions
- NCERT Solutions Class 11 Chemistry Chapter 9 : Hydrogen
- NCERT Solutions Class 11 Chemistry Chapter 10 : The s-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 11 : The p-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 12 : Organic Chemistry: Some Basic Principles and Techniques
- NCERT Solutions Class 11 Chemistry Chapter 13 : Hydrocarbons
- NCERT Solutions Class 11 Chemistry Chapter 14 : Environmental Chemistry
