1
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The bond order and magnetic behaviour of $$O_2^ - $$ ion are respectively :
A
1.5 and paramagnetic
B
1.5 and diamagnetic
C
2 and diamagnetic
D
1 and paramagnetic
2
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following the correct bond order sequence is :
A
$$O_2^{2 - } > O_2^ + > O_2^ - > {O_2}$$
B
$$O_2^ + > O_2^ - > O_2^{2 - } > {O_2}$$
C
$$O_2^ + > {O_2} > O_2^ - > O_2^{2 - }$$
D
$${O_2} > O_2^ - > O_2^{2 - } > O_2^ + $$
3
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the species having one $$\pi$$-bond and maximum number of canonical forms from the following :
A
SO3
B
O2
C
SO2
D
CO$$_3^{2 - }$$
4
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List-I with List-II :

List-I
(Species)
List-II
(Hybrid Orbitals)
(a) $$S{F_4}$$ (i) $$s{p^3}{d^2}$$
(b) $$I{F_5}$$ (ii) $${d^2}s{p^3}$$
(c) $$NO_2^ + $$ (iii) $$s{p^3}d$$
(d) $$NH_4^ + $$ (iv) $$s{p^3}$$
(v) $$sp$$


Choose the correct answer from the options given below :
A
(a)-(i), (b)-(ii), (c)-(v) and (d)-(iii)
B
(a)-(ii), (b)-(i), (c)-(iv) and (d)-(v)
C
(a)-(iii), (b)-(i), (c)-(v) and (d)-(iv)
D
(a)-(iv), (b)-(iii), (c)-(ii) and (d)-(v)
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