Question

Why can metals high up in the reactivity series not be obtained by reduction of their oxides by carbon ?

Study the experimental set-up shown in the diagram and write chemical equation for the chemical reaction involved. Name and define the type of reaction. List two other metals which can be used in place of iron to show the same type of reaction with copper sulphate solution.

Zn + 2CH₃COOH → (CH₃COO)₂Zn + H₂ The above reaction is a :

Which one of the following reactions is different from the remaining three ?

Assertion (A) : Metals in the middle of activity series are found in nature as sulphides or carbonates. Reason (R) : The sulphide ores are calcinated whereas carbonate ores are roasted to extract metals from them.