Concentration is a

Froth flo tation process is used to concentrate the ore on:

Matte is a mixture of:

In the bessemerization process:

Concentration of the copper ore is carried out by:

When CO2 is passed through the ammonical brine the only salt that precipitates is:

In Solvay’s process slaked lime is used to:

When NaHCO3 is heated it forms:

Formula of urea is:

Crude oil is heated in the fractionating furnace upto:

When crude oil is heated in the fractionating tower:

Which one of the following is used as jet fuel:

Which one of the following is not fraction of crude oil?

Which one of the followings is not a fraction of petroleum?

The nitrogen present in urea is used by plants to synthesize

Which one of the following organic compound is found in gasoline?