Answer the case-based question given below.
Take solutions of glucose, alcohol, hydrochloric acid, sulphuric acid, sodium hydroxide etc. Fix two nails on a cork, and place the cork in a 100 mL beaker. Connect the nails to the two terminals of a 6-volt battery through a bulb and a switch, as shown in. Now pour some dilute \(HCI\) into the beaker and switch on the current. Repeat with dilute sulphuric acid. Repeat the experiment separately with glucose and alcohol solutions.
a. What happens when dilute hydrochloric acid \(HCl\) and sulphuric acid \(H_2SO_4\) are used in the experiment?
b. What happens when glucose or alcohol is used instead of an acid?
c. Why does sodium hydroxide conduct electricity in water?
d. Why do aqueous solutions of acids conduct electricity?