Easy
In the extraction of aluminium,bauxite $(Al_2O_3 \cdot 2H_2O)$ is dissolved in molten cryolite $(Na_3AlF_6)$ because:
- AIt acts as a solvent
- BIt reduces the melting point of aluminium oxide
- CIt increases the electrical conductivity of the mixture
- DBauxite becomes more reactive
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Similar Questions
The reaction for obtaining the metal $(M)$ from its oxide $(M_{2}O_{3})$ ore is given by
$M_{2}O_{3(s)} + 2 Al(\ell) \xrightarrow{\text{Heat}} Al_{2}O_{3}(\ell) + 2 M_{(s)}$, $(s = \text{solid}, \ell = \text{liquid})$
In this case, $M$ is
$M_{2}O_{3(s)} + 2 Al(\ell) \xrightarrow{\text{Heat}} Al_{2}O_{3}(\ell) + 2 M_{(s)}$, $(s = \text{solid}, \ell = \text{liquid})$
In this case, $M$ is
Which of the following compounds is used for the extraction of aluminum by electrolysis?
Easy
View SolutionGold is extracted by the formation of a soluble cyanide complex. What is the formula of this cyanide complex?
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View SolutionImpure silver ore $+ CN^{-} + H_2O \xrightarrow{O_2} [X]^{-} + OH^{-}$
$[X]^{-} + Zn \longrightarrow [Y]^{2-} + Ag \text{ (pure)}$
The coordination numbers of the metals in $[X]$ and $[Y]$ are respectively
$[X]^{-} + Zn \longrightarrow [Y]^{2-} + Ag \text{ (pure)}$
The coordination numbers of the metals in $[X]$ and $[Y]$ are respectively
What is the slag formed during the extraction of iron?
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