Question

Compounds such as alcohol and glucose also contain hydrogen but are not categorised as acids? Describe an activity to prove it?

Answer 1

Hint: The acids are defined as the substances which easily protonate or donate the $H^+$ from its molecular structure. The acids show the property of turning the litmus paper to red. E.g.
$HCl->H + Cl^-$ , here the hydrochloric acid has the ability to donate $H^+$ easily. Therefore it is classified as acid.

Complete step by step answer:
To perform the activity the required material is:
1. Glucose solution
2. Alcohol solution
3. Bulb
4. Electrodes
5. Battery
6. Switch
Procedure:
Take two beakers and add glucose and alcohol in each beaker. To complete the circuit insert the
electrodes in the solutions in such a way that one end is attached to bulb and the other is attached
to the battery. When the switch of the circuit is switched on, the current passes through the circuit
and the observation is made that the bulb did not glow up in each case. In order to glow the bulb
after the, the electrons should move from the solution in the opposite direction to the movement of
positive charge.

The solution of glucose and alcohol do not give up H + ions, hence they are not classified as
acids.

Note:
The substance or the compound are acidic in nature when they in their solution state give or
donate the $H^+$ ion but in this activity performed there were no H + ions present in the solution
indicating the non-acidic behaviour of the glucose and alcohol.