Iron may be rendered passive by treatment with a concentrated sol… - Vidyadip

MCQ

Iron may be rendered passive by treatment with a concentrated solution of

A
$KSCN$
B
$H_2C_2O_4$
C
$Hg_2(NO_3)_2$
✓
$HNO_3$

✓

Answer

Correct option: D.

$HNO_3$

d
Fact

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