Chemistry, asked by syedrazamisbahi780, 1 year ago

In addition to nitric acid, another acid which may render iron passive is
A) acetic acid
B) oxalic acid
C) chromic acid
D) citric acid

Answers

Answered by thesmartlerner
0

C) chromic acid


Explanation:

Passivity of iron is due to formation of an extremely thin and impervious film of ferrosoferric oxide [Fe3(O4)]on the surface of iron. Chromic acid, being a powerful oxidising agent (like nitric acid ) renders iron passive.

Answered by mukeshmundra71
0

It's c , chromium acid

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