Table of Contents
Choose the correct options for the following questions.
Zn can be deposited on iron by ?
Difficulty: Easy
A:
Galvanizing
B:
Cathode Coating
C:
Neutral suspension
D:
All of these
Oxidation number of Cr in $\rm{K_{2}Cr_{2}O_{7}}$ and $\rm{K_{2}Cr_{2}O_{4}}$ is
Difficulty: Easy
A:
$+5,+2$
B:
$+7,+3$
C:
$+6,+3$
D:
$+6,+4$
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