In which of the following pairs is the specific characteristic of a soil not correctly matched :-

Terra rossa (Italian for 'red earth') is a red clayey soil formed on limestone in Mediterranean regions. Its name refers to its red colour (due to iron oxides), not to roses, and it has no special suitability for growing roses. So this pair is not correctly matched.
Chernozems (black earth) of the grasslands of Russia and Ukraine are very rich in humus and are considered among the most fertile soils in the world; correctly matched.
Black soil (regur) of the Deccan is clayey and rich in calcium carbonate, magnesium and iron; correctly matched.
Laterite soil, formed by intense leaching in hot, wet regions, is rich in hydrated oxides of aluminium and iron; correctly matched.
So the pair not correctly matched is Terra rossa – most suitable for roses.