Which of the following compound is formed when aluminium reacts with an alkali?(a) sodium Tetra hydroxyl aluminate V(b) sodium Tetra hydroxyl aluminate III(c) sodium Penta hydroxyl aluminate IV(d) sodium Septa hydroxyl aluminate IIII got this question in an online interview.Origin of the question is p-Block Elements topic in portion p-Block Elements of Chemistry – Class 11

Which of the following compound is formed when aluminium reacts with a

1.	Which of the following compound is formed when aluminium reacts with an alkali?(a) sodium Tetra hydroxyl aluminate V(b) sodium Tetra hydroxyl aluminate III(c) sodium Penta hydroxyl aluminate IV(d) sodium Septa hydroxyl aluminate IIII got this question in an online interview.Origin of the question is p-Block Elements topic in portion p-Block Elements of Chemistry – Class 11
Answer» The correct option is (b) SODIUM TETRA hydroxyl aluminate III The best I can EXPLAIN: When two moles of aluminium atom is combined with two moles of sodium hydroxide in presence of 6 moles of water, two moles of sodium tetra hydroxyl aluminate III is FORMED along with three moles of the hydrogen MOLECULE.

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