Hydrolysis of which of the following involves a redox change? (1) SiF_(4) (2) PCl_(5) (3) SO_(2)Cl_(2) (4) XeF_(4)
Answers
Answer:
Explanation:A reaction in which the same species is both oxidised and reduced is called disproportionation reaction. Assigning the oxidation number on central atom in each molecules by considering oxidation number of H=+1,O=−2 we get oxidation state as:
A.
Cl
2
0
+2OH
−
→
Cl
+1
O
−
+
Cl
−
−1
+H
2
O
Cl gets oxidised and reduced. Its a disproportionation reaction.
B.
Cl
2
0
+2
I
−
−1
→2
Cl
−
−1
+
I
2
0
Cl gets reduced and I gets oxidized
C. 2
Fe
0
+3
H
2
+1
O→
Fe
2
+3
O
3
+3
H
2
0
H gets reduced and Fe gets oxidized
D. 2
H
2
+1
O
−2
+2
F
2
0
→
H
+1
F
−1
+
O
2
0
F gets reduced and O gets oxidized.
Thus, Cl
2
+2OH
−
→ClO
−
Cl
−
+H
2
O is a disproportionation reaction.