Which of the following elements has the lowest tendency to form its oxide?

  • A
    $Al$
  • B
    $Fe$
  • C
    $Cr$
  • D
    $Hg$

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What is the most common method for the extraction of metal from its oxide ore?

In the process of extraction of gold,roasted gold ore reacts as follows. Identify the complexes $[X]$ and $[Y]$:
$\text{Roasted gold ore} + CN^{-} + H_2O \xrightarrow{O_2} [X] + OH^{-}$
$[X] + Zn \to [Y] + Au$

In a blast furnace,the temperature of the hearth is maintained by which type of zone?

Which of the following metals can be obtained by using $Al$ as a reducing agent?

Flux is used to remove

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