CBSE Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties Multiple Choice Questions with Answers. MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Chemistry Classification of Elements and Periodicity in Properties MCQs with Answers to know their preparation level.
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MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers - Set - 3
Question 1:
Consider the isoelectronic series : K+, S2-, Cl1- and Ca2+, the radii of the ions decrease as
(a) Ca2+ < K+ > Cl–, S2-
(b) Cl– > S2- > K+ > Ca2+
(c) S2- > Cl– > K+ > Ca2+
(d) K+ > Ca2+ > S2- > Cl.
Correct Answer – (C)
Question 2 :
The values of electronegativity of atoms A and B are 1.20 and 4.0 respectively. The percentage of ionic character of A-B bond is
(a) 50%
(b) 72.24%
(c) 55.3%
(d) 43%
Correct Answer – (B)
Question 3 :
Set containing isoelectronic species is
(a) C2−2, NO+, CN–, O2+2
(b) CO, NO, O2 CN–
(c) CO2, NO2, O2, N2O
(d) CO, CO2, NO, NO2
Correct Answer – (A)
Question 4 :
Correct order of ionization enthalpies is
(a) Zn < Cd < Hg
(b) Cd < Hg < Zn
(c) Na > Cs > Rb
(d) Cs < Rb < Na
Correct Answer – (D)
Question 5 :
The increasing order of the a tomifc radius for the elements Na, Rb, K and Mg is
(a) Na < K < Mg < Rb
(b) K < Na < Mg < Rb
(c) Na < Mg < K < Rb
(d) Mg < Na < K < Rb
Correct Answer – (D)
MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers
Question 6 :
Tick the correct order of second ionisation energy in the following
(a) F > O > N > C
(b) O > F > N > C
(c) O > N > F > C
(d) C > N > O > F
Correct Answer – (B)
Question 7 :
Which of the following is most electronegative?
(a) Carbon
(b) Silicon
(c) Lead
(d) Tin
Correct Answer – (A)
Question 8 :
Correct order of radii is
(a) N < Be < B
(b) F– < O2- < N3-
(c) Na < Li < K
(d) Fe3+ < Fe2+ < Fe4+
Correct Answer – (B)
Question 9 :
The correct’ order of the first ionization potentials among the following elements: Be, B, C, N Q is
(a) B < Be < C < O < N
(b) B < Be < C < N < O
(c) Be < B < C < N < O
(d) Be < B < C < O < N
Correct Answer – (A)
Question 10 :
The set representing the correct order of first ionization potential is
(a) K > Na > Li
(b) Be > Mg > Ca
(c) B > C > N
(d) Ge > Si > C.
Correct Answer – (B)
- 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
