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Chapter 4: Q4.12P (page 178)

Question:State whether an aqueous solution of each of the following substances conducts an electric current. Explain your reasoning.

(a) Caesium bromide (b) Hydrogen iodide

Short Answer

Expert verified

Answer

a) Yes, an aqueous solution of Caesium bromide conducts electric current.

b) Yes, an aqueous solution of Hydrogen iodide conducts electric current.

Step by step solution

01

Explain the solubility of ionic compounds in water

All the ionic compounds which dissociate into ions on dissolving in water conduct electricity because they contain charge and are free to move in the solution.

02

Determine the aqueous solution of given compounds conduct electricity or not

An aqueous solution of both the given compounds i.e.,

(a) Caesium bromide and (b) Hydrogen iodide can conduct electricity

Because both produce free moving charged ions on dissolving in water and conduct electric current.

In the case of Caesium bromide, it dissociates into CS+and Br-ions and conducts electricity.

In the case of Hydrogen iodide, it is a strong acid and dissociates completely in the water into H+and I_ ions through which it conducts electricity.

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