Chalcopyrite is the main ore of_________________?
Chalcopyrite is the main ore of_________________?
A. Copper
B. Lead
C. Tin
D. Iron
A. Copper
B. Lead
C. Tin
D. Iron
A. Glauber’s salt
B. Common salt
C. Chlorine
D. Graphite electrode
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A. Light & heavy leather respectively
B. Heavy & light leather respectively
C. Both light & heavy leather
D. Neither light nor heavy leather
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
A. Bicarbonates & sulphates of calcium and magnesium
B. Undesirable taste and odour
C. Bacteria
D. Its corrosiveness
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.