The cathode in an electrochemical cell always carries
A. negative charge
B. positive charge
C. zero charge
D. positive or negative charge depending upon the nature of the cell
Answer: Option A
A. negative charge
B. positive charge
C. zero charge
D. positive or negative charge depending upon the nature of the cell
Answer: Option A
Intergrannular corrosion of light 18-8 stainless steel can not be prevented by
A. reducing the carbon content to less than 0.05%
B. quenching it from high temperature to prevent chromium carbide precipitation
C. adding strong carbide forming elements
D. increasing the carbon content
Which of the following metals is highest noble in the Galvanic series?
A. Platinum
B. gold
C. graphite
D. titanium
A. Zn, Fe, Pt, Cu
B. Pt, Zn, Cu, Fe
C. Fe, Pt, Cu, Zn
D. Pt, Cu, Fe, Zn
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