Refer to the above figure. A student took solutions of glucose, alcohol, hydrochloric acid, sulphuric acid, etc. He fixed two nails on a cork, and placed the cork in a 100 mI beaker. He connected the nails to the two terminals of a 6 volt battery through a bulb and a switch, as shown in the above figure. He then poured some dilute HCl in the beaker and switched on the current.
1. Does the bulb glow in case of alcohol and glucose?
(i) YES
(ii) NO
2. Does the bulb glow in case of hydrochloric acid and sulphuric acid?
(i) YES
(ii) NO
3. The bulb glows in case of acids. The electric current is carried through the acidic solution by ____.
(i) Filament
(ii) Glass
(iii) Ions
4. True or false. Glowing of the bulb indicates that there is a How of electric current through the solution.
(i) TRUE
(ii) FALSE
5. True or false. The bulb will glow in case of an alkali like sodium hydroxide, calcium hydroxide, etc.
(i) TRUE
(ii) FALSE
