Question

y the colour of red soil is red in colour

Answer 1

DEAR FRIEND,
Their colour is mainly due to ferric oxides occurring as thin coatings on the soil particles while the iron oxide occurs as haematite or as hydrous ferric oxide, the color is red and when it occurs in the hydrate form as limonite the soil gets a yellow colour.

HOPE IT HELPS

Answer 2

Due to the diffusion of iron in crystalline and metamorphic rocks .