Question

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

Which of the following is a redox reaction, but not a combination reaction ?

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 :

What is a chemical reaction ? Describe one activity each to show that a chemical change has occurred in which (i) change of colour, and (ii) change in temperature has taken place.