Metal X was placed in lead nitrate solution. A thin layer of lead metal deposits on metal X. Which is more reactive metal X or lead ? State the type of reaction and give an example of this type.

What type of reaction is respiration ? Explain.

Take sodium sulphate solution in a test tube and add barium chloride solution to it dropwise.

(a) What do you observe?

(b) Why is the reaction fast?

(c) Which type of reaction is it?

NaCl + AgNO₃ ⟶ AgCl + NaNO₃

(a) What will you observe in the above chemical change?

(b) Why is this reaction known as a double displacement reaction?

(c) Which reagent can be used to test the chloride radical?