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Electrochemistry - Set 7
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NUST Entrance Test
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Chemistry
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Electrochemistry
Set 7
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Mashaal Masha
Oct 19, 2022
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Choose the correct options for the following questions.
Zn can be deposited on iron by ?
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Difficulty: Easy
A:
Galvanizing
B:
Cathode Coating
C:
Neutral suspension
D:
All of these
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Oxidation number of Cr in $\rm{K_{2}Cr_{2}O_{7}}$ and $\rm{K_{2}Cr_{2}O_{4}}$ is
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Difficulty: Easy
A:
$+5,+2$
B:
$+7,+3$
C:
$+6,+3$
D:
$+6,+4$
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