Hoop's process is used for the purification of the metal
Hoop's process is used for the purification of the metal
- A
$Al$
- B
$Zn$
- C
$Ag$
- D
$Cu$
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Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out in the presence of
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When metal $X$ is treated with sodium hydroxide, a white precipitate $(A)$ is obtained, which is soluble in excess of $NaOH$ to give soluble complex $(B)$. Compound $(A)$ is soluble in dilute $HCl$ to form compound $(C)$. The compound $(A)$ when heated strongly gives $(D)$, which is used to extract metal. Identify $(X), (A), (B), (C)$ and $(D)$. Write suitable equations to support their identities.
When metal $X$ is treated with sodium hydroxide, a white precipitate $(A)$ is obtained, which is soluble in excess of $NaOH$ to give soluble complex $(B)$. Compound $(A)$ is soluble in dilute $HCl$ to form compound $(C)$. The compound $(A)$ when heated strongly gives $(D)$, which is used to extract metal. Identify $(X), (A), (B), (C)$ and $(D)$. Write suitable equations to support their identities.
Anhydrous $AlCl_3$ is formed in
Anhydrous $AlCl_3$ is formed in
$N{a_2}{B_4}{O_7}.10{H_2}O \xrightarrow{\Delta } X + NaB{O_2} + {H_2}O$
$X + C{r_2}{O_3}\xrightarrow{\Delta }Y$ (Green coloured)
$X$ and $Y$ are
$N{a_2}{B_4}{O_7}.10{H_2}O \xrightarrow{\Delta } X + NaB{O_2} + {H_2}O$
$X + C{r_2}{O_3}\xrightarrow{\Delta }Y$ (Green coloured)
$X$ and $Y$ are