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  4. The nature of Fe 2 O 3 is

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Q. The nature of $Fe _{2} O _{3}$ is

ManipalManipal 2011

Solution:

$Fe _{2} O _{3}$ is amphoteric in nature as it reacts with both acid and alkali.
$Fe _{2} O _{3}+\underset{\text { acid }}{6 HCl } \longrightarrow 2 FeCl _{3}+3 H _{2} O$
$Fe _{2} O _{3}+\underset{\text { alkali }}{Na_2CO_3 } \longrightarrow 2 NaFeO _{2}+ CO _{2}$