Chalcopyrite is an ore of
Question: Chalcopyrite is an ore of
[A].
lead
aluminium
copper
zinc
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Similar Posts
An oxidation process is accompanied with decrease in the____________________?
An oxidation process is accompanied with decrease in the____________________?A. Number of electrons
B. Oxidation number
C. Number of ions
D. All A , B. & C.Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger?
Question: Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger?
[A].Corrosiveness & fouling characteristics [B].
pressure [C].
viscosity [D].
density Answer: Option D
Explanation:
No answer description available for this question.
The emf of a Deniell cell “Zn | Zn2+ || Cu2+ | Cu” can be increased by_________________?
The emf of a Deniell cell “Zn | Zn2+ || Cu2+ | Cu” can be increased by_________________?A. Decreasing the surface area of the electrodes
B. Increasing the concentration of zinc sulphate solution
C. Increasing the surface area of the electrodes
D. Increasing the concentration of copper sulphate solutionMetallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.
Question: Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.
[A].350 [B].
750 [C].
1050 [D].
1250 Answer: Option B
Explanation:
No answer description available for this question.
____________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength ?
____________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength ?A. Lancing
B. Shot peening
C. Slugging
D. SningYeast is used in the manufacture of
Question: Yeast is used in the manufacture of
[A].pencillin [B].
antibiotics [C].
wine [D].
pasteurised milk Answer: Option C
Explanation:
No answer description available for this question.