Question

a) Smelting
b) Calc
c) Roasting
d) Elec
9. Which one of the following is not feasible
a) Zn(s) + Cu2+ (aq) – - Cu(s) + Zn** (aq)
b) Cu(s) + Zn2+ (aq) —— Zn(s) + Cu2+ (aq)
c) Cu(s) + 2Ag+ (aq) — 2Ag(s) + Cu²+ (aq)
d) Fe(s) + Cu²+ (aq) — Cu(s) + Fe²+ (aq)
10. Electrochemical process is used to extract
2) Iron
b) Lead
csol​

Answer 1

Answer:

Smelting

b) Calc

c) Roasting

d) Elec

9. Which one of the following is not feasible

a) Zn(s) + Cu2+ (aq) – - Cu(s) + Zn** (aq)

b) Cu(s) + Zn2+ (aq) —— Zn(s) + Cu2+ (aq)

c) Cu(s) + 2Ag+ (aq) — 2Ag(s) + Cu²+ (aq)

d) Fe(s) + Cu²+ (aq) — Cu(s) + Fe²+ (aq)

10. Electrochemical process is used to extract

2) Iron

b) Lead

csol