BAI TAP VE NHOM HALOGEN

BÀI TẬP VỀ NHÓM HALOGEN
1.
2 2
2
o
t
HCl H Cl→ +
Hoặc
3 2 2 2
2HCl O Cl O H O
+ → + +
Hoặc
2 2 2 2
4 2 2HCl Na O NaCl Cl H O+ → + +
Hoặc
2 2 2 2
4 2HCl PbO PbCl Cl H O
+ → + +
2.
2 2
2Cl H HCl
+ →
3.
4 2 2 2
2 16 5 2 2 8KMnO HCl Cl KCl MnCl H O
+ → + + +
4.
2 2 7 2 3 2
14 3 2 2 7K Cr O HCl Cl CrCl KCl H O+ → + + +
5.
400

2 2 2
4 2 2
o
C
HCl O Cl H O+ → +
6.
2 2 2 2
4 2MnO HCl MnCl Cl H O
+ → + +
Hoặc
2 4 2 2 4 2 2 2
4 2 2 2KCl H SO MnO K SO MnCl Cl H O
+ + → + + +
7.
2 3
2 3 2
o
t
Fe Cl FeCl+ →
8.
3 2
2 3FeCl Fe FeCl
+ →
Hoặc
3 2 2
2 2FeCl Cu CuCl FeCl
+ → +
9.
2 2 3
2 2FeCl Cl FeCl

+ →
10.
2 2
2Cl KOH KCl KClO H O
+ → + +
11.
3
3 2
o
t
KClO KCl KClO
→ +
12.
2
,
3 2
2 2 3
o
t MnO
KClO KCl O→ +
13.
2 3 2
3 6 5 3
o
t
dd
Cl KOH KCl KClO H O+ → + +
Hoặc
ên phân
2 3 2

có xúc tác
3 3
di
KCl H O KClO H+ → + ↑
14.
2 2
dpnc
CaCl Ca Cl→ +
Hoặc
( )
2 2 2 2
2
2
dpdd
CaCl H O H Ca OH Cl
+ → ↑ + + ↑
15.
( )
2 2
2
o
t
Ca ClO CaCl O
→ +
16.
( ) ( )
2 2 2
2 2
2 2Cl Ca OH CaCl Ca ClO H O
+ → + +

17.
2
2 2
dpnc
KCl K Cl
→ +
Hoặc
2 2 2
ó màng ngan
2 2 2
dpdd
c
KCl H O KOH H Cl+ → + +
18.
2 2
2 2Cl NaBr NaCl Br
+ → +
19.
2 2
2 2Br NaI NaBr I
+ → +
20.
2 3
2 3 2
o
t
Fe Cl FeCl
+ →
21.
( ) ( )

3 2
2 3
2 3 3 2FeCl Ba OH BaCl Fe OH
+ → + ↓
22.
2 2 4 4
2BaCl Na SO BaSO NaCl
+ → ↓ +
23.
2
2 2
dpnc
NaCl Na Cl
→ +
Hoặc
2 2 2
ó màng ngan
2 2 2
dpdd
c
NaCl H O NaOH H Cl
+ → + +
24.
2 3 2
3 6 5 3
o
t
dd
Cl KOH KCl KClO H O
+ → + +

25.
2
3 2
2 2 3
o
t
MnO
KClO KCl O
→ +
26.
2 2
2 2Cl KI KCl I
+ → +
27.
2 2
2H I HI
+
ˆ ˆ †
‡ ˆ ˆ
28.
2 2
2 2HI Cl HCl I
+ → +
29.
2
HCl KOH KCl H O
+ → +
30.
2
2 2

dpnc
KCl K Cl
→ +
Hoặc
2 2 2
ó màng ngan
2 2
dpdd
c
KCl H O KOH H Cl+ → + +
31.
2 2 2 2 4
4 4 8Cl H S H O H SO HCl
+ + → +