Examsnet
Unconfined exams practice
Home
Exams
Banking Entrance Exams
CUET Exam Papers
Defence Exams
Engineering Exams
Finance Entrance Exams
GATE Exam Practice
Insurance Exams
International Exams
JEE Exams
LAW Entrance Exams
MBA Entrance Exams
MCA Entrance Exams
Medical Entrance Exams
Other Entrance Exams
Police Exams
Public Service Commission (PSC)
RRB Entrance Exams
SSC Exams
State Govt Exams
Subjectwise Practice
Teacher Exams
SET Exams(State Eligibility Test)
UPSC Entrance Exams
Aptitude
Algebra and Higher Mathematics
Arithmetic
Commercial Mathematics
Data Based Mathematics
Geometry and Mensuration
Number System and Numeracy
Problem Solving
Board Exams
Andhra
Bihar
CBSE
Gujarat
Haryana
ICSE
Jammu and Kashmir
Karnataka
Kerala
Madhya Pradesh
Maharashtra
Odisha
Tamil Nadu
Telangana
Uttar Pradesh
English
Competitive English
Certifications
Technical
Cloud Tech Certifications
Security Tech Certifications
Management
IT Infrastructure
More
About
Careers
Contact Us
Our Apps
Privacy
Test Index
JEE Main 25 July 2021 Shift 2 Solved Paper
Show Para
Hide Para
Share question:
© examsnet.com
Question : 36
Total: 90
The ionic radii of
F
−
and
O
2
−
respectively are
1.33
Å
and
1.4
Å
, while the covalent radius of
N
is
0.74
Å
The correct statement for the ionic radius of
N
3
−
from the following is :
[25 Jul 2021 Shift 2]
It is smaller than
F
−
and
N
It is bigger than
O
2
−
and
F
−
It is bigger than
F
−
and
N
, but smaller than of
O
2
−
It is smaller than
O
2
−
and
F
−
, but bigger than of
N
Validate
Solution:
F
−
,
O
2
−
and
N
3
−
all are isoelectronic species in which
N
3
−
have least number of protons due to which it's size increases as least nuclear attraction is experienced by the outer shell electrons.
Size order
N
3
−
>
O
2
−
>
F
−
© examsnet.com
Go to Question:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
Prev Question
Next Question