which of the following reactions oxidation and reduction are taking place
1. Zn + HCl - ZnCl² + H²
2. AgNo³ + HCl - AgCl + HNo³
3. NaoH + HCl - NaCl + H²o
4. BaCl² + H²So⁴ - BaSo⁴ + HCl
Answers
Answer:
The reactions a and d are redox reactions.
a. Zn+2HCl⟶ZnCl
2
+H
2
Zinc is oxidized and HCl is reduced.
d. Disproportionation of Cu
⊕
in aqueous solution.
2Cu
+
→Cu
2+
+Cu
One cuprous ion is oxidized to cupric ion and other cuprous ion is reduced to copper.
Following reactions are not redox reactions as there is no change in the oxidation number.
b. Al(OH)
3
+3HCl⟶AlCl
3
+3H
2
O
c. Ag
⊕
+I
⊖
⟶Agl
Answer:
《ANSWER》
Correct option is
A
a and d
The reactions a and d are redox reactions.
a. Zn+2HCl⟶ZnCl2+H2
Zinc is oxidized and HCl is reduced.
d. Disproportionation of Cu⊕ in aqueous solution.
2Cu+→Cu2++Cu
One cuprous ion is oxidized to cupric ion and other cuprous ion is reduced to copper.
Following reactions are not redox reactions as there is no change in the oxidation number.
b. Al(OH)3+3HCl⟶AlCl3+3H2O
c. Ag⊕+I⊖⟶Agl
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Explanation:
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