The position of some metals in the electrochemical series in decreasing electropositive…

Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry

1. The spoon will get coated with aluminium
2. An alloy of copper and aluminium is formed
3. The solution becomes blue
4. There is no reaction

Answer

(D) There is no reaction

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• The standard electrode potential for the half-cell reactions are: array l Z n^ 2+ (a q)+2 e^ - Z n(5): E^ 3…
• If the pressure of hydrogen gas is increased from 1 atm. to 100 atm., keeping the hydrogen ion concentration…
• Chlorine undergoes disproportionation in alkaline medium as shown below: aCl 2 (g) + bOH – (aq) → cClO – (aq)…
• The compound that cannot act both as oxidising and reducing agent is
• BrO 3 – changes into Br 2 in an acidic medium of a unbalanced equation. How many electron should be present…
• Al 2 O 3 is reduced by electrolysis at low potentials and high currents. If 4.5 × 10 4 A of current is passed…
• In neutral or faintly alkaline medium, KMnO 4 being a powerful oxidant can oxidize, thiosulphate almost…
• In acidic medium, K 2 Cr 2 O 7 shows oxidizing action as represented in the half reaction. C _ 2 O _ 7 ^ 2- +…

More Redox Reactions and Electrochemistry questions · Browse all practice questions