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⁺, S^2-, Cl^1- and Ca²⁺, the radii of the ions decrease as
(a) Ca²⁺ < K⁺ > Cl^–, S^2-
(b) Cl^– > S^2- > K⁺ > Ca²⁺
(c) S^2- > Cl^– > K⁺ > Ca²⁺
(d) K⁺ > Ca²⁺ > S^2- > Cl.

Check Answer

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%

Check Answer

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

Check Answer

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

Check Answer

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

Check Answer

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

Check Answer

Correct Answer – (B)

Question 7 :

Which of the following is most electronegative?
(a) Carbon
(b) Silicon
(c) Lead
(d) Tin

Check Answer

Correct Answer – (A)

Question 8 :

Correct order of radii is
(a) N < Be < B
(b) F^– < O^2- < N^3-
(c) Na < Li < K
(d) Fe³⁺ < Fe²⁺ < Fe⁴⁺

Check Answer

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

Check Answer

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.

Check Answer

Correct Answer – (B)

MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers

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MCQ Questions Class 11 Chemistry Structure of Atom with Answers

MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers - Set - 3

Correct Answer – (C)

Correct Answer – (B)

Correct Answer – (A)

Correct Answer – (D)

Correct Answer – (D)

MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers

Correct Answer – (B)

Correct Answer – (A)

Correct Answer – (B)

Correct Answer – (A)

Correct Answer – (B)

MCQ Questions Class 11 Chemistry Classification of Elements and Periodicity in Properties with Answers

MCQ Questions Class 11 Chemistry Structure of Atom with Answers

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