Tag: extraction of metal from concentrated ore
Questions Related to extraction of metal from concentrated ore
Which of the following sulphides when heated strongly in air gives the corresponding metal without undergoing separate reduction of oxide?
Which of the following reactions show the process of smelting?
Fill in the blanks with the correct choice.
The undesired impurities present in the ores are called (i). To remove the volatile impurities from the ore, the (ii) process is carried out. Flux combines with non-fusible impurities to form (iii). $CaO$ acts as a (iv) flux.
Extraction of chlorine from brine is based on:
Which of the following is reactions is an example of autoreduction?
In the process of extraction of gold, Roasted gold ore$+CN^- _{(aq)}+H _2O\overset{O _2}{\rightarrow}[X]+[OH^-]$, $[X]+Zn\rightarrow [Y]+Au$
Identify the complexes [X] and [Y].
The major step involved in extraction of a metal after its ore is :
Which of the following is not a method of extraction of metals?
Process of removal of gangue from the ore are based on: