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1
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List I
(molecules/ions)		 List II
(No. of lone pairs of e$$^-$$ on central atom)
A. $$\mathrm{IF_7}$$ I. Three
B. $$\mathrm{ICl}$$$$_4^ - $$ II. One
C. $$\mathrm{XeF_6}$$ III. Two
D. $$\mathrm{XeF_2}$$ IV. Zero

Choose the correct answer from the options given below :

A
A - II, B - I, C - IV, D - III
B
A - IV, B - I, C - II, D - III
C
A - IV, B - III, C - II, D - I
D
A - II, B - III, C - IV, D - I
2
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

According to MO theory the bond orders for $$\mathrm{O}$$$$_2^{2 - }$$, $$\mathrm{CO}$$ and $$\mathrm{NO^+}$$ respectively, are

A
1, 3 and 3
B
2, 3 and 3
C
1, 2 and 3
D
1, 3 and 2
3
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The magnetic behaviour of $$\mathrm{Li_2O,Na_2O_2}$$ and $$\mathrm{KO_2}$$, respectively, are :

A
paramagnetic, paramagnetic and diamagnetic
B
paramagnetic, diamagnetic and paramagnetic
C
diamagnetic, paramagnetic and diamagnetic
D
diamagnetic, diamagnetic and paramagnetic
4
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The bond dissociation energy is highest for

A
Cl$$_2$$
B
I$$_2$$
C
Br$$_2$$
D
F$$_2$$
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