Consider two chemical reactions (A) and (B) that take place during metallurgical process: (A) ZnCO 3(s) xrightarrowΔ ZnO (s)+ CO 2(g) (B) 2 Z n S(s)+3 O2(g) longrightarrow 2 Z n O(s)+2 S O2(g) The correct option of names given to them respectively is

Question

Consider two chemical reactions (A) and (B) that take place during metallurgical process: (A) ZnCO 3(s) xrightarrowΔ ZnO (s)+ CO 2(g) (B) 2 Z n S(s)+3 O2(g) longrightarrow 2 Z n O(s)+2 S O2(g) The correct option of names given to them respectively is (A) (A) is calcination and (B) is roasting (B) Both (A) and (B) are producing same product so both are roasting (C) Both (A) and (B) are producing same product so both are calcination (D) (A) is roasting and (B) is calcination

Tardigrade Admin · Accepted Answer

(A) ZnCO 3( S ) xrightarrowΔ ZnO ( s )+ CO 2(g) Heating in absence of oxygen in calcination. (B) 2 Zns ( s )+3 O 2(g) arrow 2 Zn O (g)+2 SO 2(g) heating in presence of oxygen in roasting Hence (A) is calcination while (B) in roasting.

Q. Consider two chemical reactions $(A)$ and $(B)$ that take place during metallurgical process :
(A) $Z n C O_{3 (s)} Δ Z n O_{(s)} + C O_{2 (g)}$
(B) $2 Z n S_{(s)} + 3 O_{2 (g)} ⟶ 2 Z n O_{(s)} + 2 S O_{2 (g)}$
The correct option of names given to them respectively is

(A) is calcination and (B) is roasting

Both $(A)$ and $(B)$ are producing same product so both are roasting

Both (A) and (B) are producing same product so both are calcination

(A) is roasting and (B) is calcination

(A) $Z n C O_{3} (S) Δ Z n O (s) + C O_{2} (g)$
Heating in absence of oxygen in calcination.
(B) $2 Z n s (s) + 3 O_{2} (g) \to 2 Z n O (g) + 2 S O_{2} (g)$
heating in presence of oxygen in roasting
Hence $(A)$ is calcination while $(B)$ in roasting.

Q. Consider two chemical reactions (A) and (B) that take place during metallurgical process : (A) ZnCO3(s)​Δ​ZnO(s)​+CO2(g)​ (B) 2ZnS(s)​+3O2(g)​⟶2ZnO(s)​+2SO2(g)​ The correct option of names given to them respectively is