Chemical Effects of Electric Current

Chemical Effects of Electric Current Worksheet-1

1. Current is the flow of:

(a) Matter          (b) Electrons     (c) Protons        (d) Charge

2. In electrolytic solutions, carrier of charge is:

(a) Proton          (b) Electron      (c) Neutron       (d) ion

3. Insulators:

(a) conduct electricity

(b) do not conduct electricity

(c) conduct electricity only at low temperatures

(d) conduct electricity at room temperature

Chemical Effects of Electric Current Worksheet-2

1. _______ present in the lemon juice acts as an electrolyte.

(a) Sulphuric acid                        (b) Nitric acid

(c) Hydrochloric acid                  (d) Citric acid

2. Anode is:

(a) positively charged electrode

(b) negatively charged electrode

(c) wire used to connect the electrodes

(d) electrolyte which conducts electricity

Chemical Effects of Electric Current Worksheet-3

1. When current is passed through molten sodium chloride:

(a) sodium is deposited at the positive electrode and chlorine gas is formed at the negative electrode

(b) sodium is evaporated and chloride ions are formed at the negative electrode

(c) sodium is deposited at the positive electrode and chlorine is deposited at the negative electrode

(d) sodium is deposited at the negative electrode and the chlorine gas is formed at the positive electrode

2. Splitting a compound using electricity is called:

(a) Electrolysis                              (b) Electrolyte