EPFO 2012 PYQ with Answer — Which one of the following statements is true about red soil ?

2012 · Q30

Which one of the following statements is true about red soil ?

General ScienceChemistry

AIt is rich in humus.
BIt is rich in potash.
CIt is rich in iron compounds.
DIt is derived from volcanic origin.

Explanation

Red soil gets its colour from iron compounds, chiefly ferric oxide. It is poor in humus (option A is wrong), and it is black cotton soil — not red soil — that derives from volcanic Deccan basalt (option D is wrong). Its defining chemical trait in the options is therefore richness in iron compounds.