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Practice each question, then open the answer or worked solution.
The electronic configuration of the outermost shell of the most electronegative
element is
(i) 2s2 2p5
(ii) 3s2 3p5
(iii) 4s2 4p5
(iv) 5s2 5p
Option (i) is the answer.
Amongst the following elements whose electronic configurations are given
below, the one having the highest ionisation enthalpy is
(i) [Ne]3s2 3p1
(ii) [Ne]3s2 3p3
(iii) [Ne]3s2 3p2
(iv) [Ar]3d10 4s2 4p3
Option (ii) is the answer.
II. Multiple Choice Questions (Type-II)
In the following questions, two or more options may be correct.
Which of the following has identical bond order?
Option (i) and (ii) are the answers.
Which of the following attains the linear structure:
Option (i) and (iv) are the answers.
CO is isoelectronic with
(i) NO+
(ii) N2
(iii) SnCl2
(iv) NO2
Option (i) and (ii) are the answers.
Which of the following species have the same shape?
Option (iii) and (iv) are the answers.
Which of the following statements are correct about CO32-?
bonds.
Option (iii) and (iv) are the answers.
Diamagnetic species are those which contain no unpaired electrons. Which
among the following are diamagnetic?
Option (i) and (iv) are the answers
Species having the same bond order are :
(i) N2
(ii) N2-
(iii) F2+
(iv) O2
Option (iii) and (iv) are the answers.
Which of the following statements are not correct?
solid-state.
Option (i) and (ii) are the answers.
III. Short Answer Type