1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Chemistry
Periodic Properties
Consider the ...
Question
Consider the reaction,
H
2
+
X
2
→
2
H
X
, where X is halogen.
The reactivity of halogens decrease in the order of:
A
C
l
2
>
F
2
>
B
r
2
>
I
2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
I
2
>
B
r
2
>
F
2
>
C
l
2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
F
2
>
C
l
2
>
B
r
2
>
I
2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
I
2
>
B
r
2
>
C
l
2
>
F
2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
C
F
2
>
C
l
2
>
B
r
2
>
I
2
H
−
H
+
X
−
X
⟶
2
H
X
, where
X
=
halogen.
The hydrogen-halogen reactions get gradually less reactive toward the heavier halogens.
The correct decreasing order of reactivity of halogen molecule towards
H
2
is
F
2
>
C
l
2
>
B
r
2
>
I
2
.
Suggest Corrections
0
Similar questions
Q.
Consider the following orders –
(1)
F
2
>
C
l
2
>
B
r
2
>
I
2
:
boiling point
(2)
F
2
>
C
l
2
>
B
r
2
>
I
2
:
oxidizing nature
(3)
F
2
>
C
l
2
>
B
r
2
>
I
2
:
EN
(4)
F
2
>
C
l
2
>
B
r
2
>
I
2
:
BDE
(5)
F
2
>
C
l
2
>
B
r
2
>
I
2
:
EA
(6)
F
2
>
C
l
2
>
B
r
2
>
I
2
:
Reactivity
(7)
H
O
C
l
>
H
C
l
O
2
>
H
C
l
O
3
>
H
C
l
O
4
:
Acidic nature
(8)
H
O
C
l
>
H
C
l
O
2
>
H
C
l
O
3
>
H
C
l
O
4
:
Oxidizing nature
Then calculate
(
x
2
+
y
2
)
when
x
is correct order and
y
is incorrect order.
Q.
Order of reactivity towards halogenation is
F
2
>
C
l
2
>
B
r
2
>
I
2
.
State True or False.
Q.
Arrange the halogens
F
2
,
C
l
2
,
B
r
2
,
I
2
,
in order of their increasing reactivity with alkanes.
Q.
Increasing oxidising nature of
I
2
,
B
r
2
,
C
l
2
,
F
2
is :
I
2
<
B
r
2
<
C
l
2
<
F
2
.
if true enter 1, else enter 0.
Q.
Bond energy of different halogen molecules will lie in the sequence
C
l
2
>
B
r
2
>
F
2
>
I
2
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Periodic Properties
CHEMISTRY
Watch in App
Explore more
Periodic Properties
Standard XII Chemistry
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app