Question

name the compound formed when bauxite reacts with sodium hydroxide​

Answer 1

Answer:

Red mud

Explanation:

Red mud is the waste product that is produced in the digestion of bauxite with sodium hydroxide.

Answer 2

Answer:

$NaAlO_{2}$ (sodium meta aluminate) is formed when bauxite$(Al_{2}O_{3}. 2H_{2} O)$ is reacted with sodium hydroxide $(NaOH)$.

Explanation:

• Bauxite:- Bauxite is the element that has a generally large amount of aluminum minerals, bauxites are the world’s largest or main source producer of aluminum and gallium. It seems reddish-brown, tan in color.

• Sodium hydroxide:- it is also known as caustic soda,$(NaOH)$ consists of $(Na^{+} )$ sodium cation and $(OH^{-} )$  hydroxide anion, it is an ionic compound that is white solid in color. Caustic soda is an inorganic compound that's the formula$(NaOH)$

When bauxite reacts with sodium hydroxide, sodium hydroxide reacts to aluminum oxide that is present in bauxite and forms sodium meta aluminate $(NaAlO_{2})$

The reaction is as follows:-

$Al_{2}O_{3}.2H_{2}O(s) + 2NaOH(aq) \ \to 2NaAlO_{2}(aq) + 3H_{2}O(l)$