Which of the following aboutsacrificial anodes is wrong? a)Generally, low percentage alloys are preferred instead of pure metal as the galvanic anode. b)Noble metals in the anode composition have a passivating effect on the anode. c)Magnesium anodes,especially high potential magnesium anodes,are preferred for high resistance grounds and fresh waters. d)Aluminum anodes cannotbe used in pure form, as they passivateeasily. e)The current strength drawnfrom the sacrificial anode is independent of the anode resistance and the potential difference between the anode-cathode.
Which of the following aboutsacrificial anodes is wrong? a)Generally, low percentage alloys are preferred instead of pure metal as the galvanic anode. b)Noble metals in the anode composition have a passivating effect on the anode. c)Magnesium anodes,especially high potential magnesium anodes,are preferred for high resistance grounds and fresh waters. d)Aluminum anodes cannotbe used in pure form, as they passivateeasily. e)The current strength drawnfrom the sacrificial anode is independent of the anode resistance and the potential difference between the anode-cathode.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Which of the following aboutsacrificial anodes is wrong?
a)Generally, low percentage alloys are preferred instead of pure metal as the galvanic anode.
b)Noble metals in the anode composition have a passivating effect on the anode.
c)Magnesium anodes,especially high potential magnesium anodes,are preferred for high resistance grounds and
fresh waters.
d)Aluminum anodes cannotbe used in pure form, as they passivateeasily.
e)The current strength drawnfrom the sacrificial anode is independent of the anode resistance and the potential
difference between the anode-cathode.
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