Question

Calamine is

Solution

Correct option is

ZnCO3

Calamine is the carbonate ore of zinc (ZnCO3).

SIMILAR QUESTIONS

Q1

Stainless steel has iron and

Q2

Thermite process is used in reduction of

Q3

Bauxite ore is made up of Al2O3 + SiO2 + TiO2 + Fe2O3. This ore is treated with conc. NaOH solution at 500 K and 35 bar pressure for few hours and filtered when hot. In the filtrate, the species present are

Q4

 

When copper pyrites is roasted in excess of air, a mixture of CuO + FeO is formed. FeO is present as impurities. This can be removed as slag during reduction of CuO. The flux added to form slag is

Q5

Willemite is

Q6

The temperature of the slag zone in the metallurgy of iron using blast furnace is

Q7

The ore that is concentrated by froth floatation process is

Q8

Native silver metal forms a water soluble complex with a dilute aqueous solution of NaCN in the presence of

Q9

Which of the following factors is of no significance for roasting sulphide ores to the oxidexs and not subjecting the sulphide ores to carbon reduction directly?

Q10

Extraction for zinc from zinc blende is achieved by