Question

When an iron article rusts, a _______ layer forms on it . *

1 point

a) black

b) white

c) greenish

d) reddish

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Answer 1

Answer:

reddish

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Answer 2

>>Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture.

ANSWER ----> (d) Reddish

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