Which one of the following correctly represents the reaction between aluminium metal and aqueous sodium hydroxide?

A l (s) + 6 O H^{-} (a q) \to [A l {(O H)}_{6}]^{3 -} (a q)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A l (s) + O H^{-} (a q) + 3 H_{2} O (1) \to [A l {(O H)}_{4}]^{-} (a q) + \frac{3}{2} H_{2} (g)

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

A l (s) + 4 O H^{-} (a q) \to [A l {(O H)}_{4}]^{-} (a q)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A l (s) + 2 H_{2} O (1) + 4 O H^{-} (a q) \to [A l {(O H)}_{6}]^{3 -} + H_{2} (g)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $A l (s) + O H^{-} (a q) + 3 H_{2} O (1) \to [A l {(O H)}_{4}]^{-} (a q) + \frac{3}{2} H_{2} (g)$
$2 A l (s) + 2 O H^{-} (a q) + 6 H_{2} O (l) \to 2 [A l {(O H)}_{4}]^{-} (a q) + 3 H_{2} (g)$

Suggest Corrections

Similar questions

A l (O H)_{3}

A l (O H)_{3} (s) ⇌ A l^{3 +} (a q) + 3 O H^{-} (a q); K_{s p}

A l (O H)_{3} (s) + O H (a q) ⇌ A l (O H)_{4}^{-} (a q); K_{c}

A l (O H)_{3}

A l (O H)_{3} (s) ⇌ A l^{3 +} (a q .) + 3 O H^{-} (a q .); K_{s p}

A l (O H)_{3} (s) + O H^{-} (a q) ⇌ A l (O H)_{4}^{-} (a q .); K_{c}

The oxidation and reduction half reactions of the reaction

2Al_(s) + 3Cu²⁺_(aq) → 2Al³⁺_(aq) + 3Cu_(s) are

$2 Al (s) + 6 HCl (aq) \to$

S_{4} O_{6}^{2 -} (a q) + A l (s) \to H_{2} S (a q) + A l^{3 +} (a q)

Join BYJU'S Learning Program