Chemical repercussion often involves heat alteration, heat removal, or heat Amalgamation, but in some specific circs, electric energy can also be produced from chemical reactions. Primary cells and batteries are a good example of the transformation of chemical energy into electrical energy. Dry batteries are also based on this principle. The electrical current decomposes into sodium and chlorine due to electrical changes. As a result, we get burning soda, hydrogen, and chlorine. All three of them are of huge value from the industry.
1. Who is the father of modern electrochemistry?
A. Allen Bard
B. Newton
C. Galileo
D. None of these
2. The substance used in the manufacture of high voltage insulators is.....
A. Natural rubber
B. Silicons
C. Silicon carbide
D. Synthetic rubber
3. What happens to the equivalent conductance of an electrolyte on dilution?
A. Decreases
B. Increases
C. Remains constant
D. May increase or decrease
4. Copper sulfate solution conducts the current......
A. Electrons
B. Ions
C. Semi - conduction
D. Mixed conduction
5. Which of the following electronic configuration is the stablest?
A. d2
B. p2
C. s2
D. f2
6. Which one of the following is correctly matched?
A. Conductor - copper
B. Semi - conductor - silver
C. Insulator - rusting of iron
D. Corrosion - rubber
7. Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights electric shavers?
A. Nickel and Cadmium
B. Zinc and carbon
C. Iron and cadmium
D. Lead peroxide and lead
8. Using your chemical intuition, which of the following species is the strongest oxidizing agent?
A. F2
B. H2
C. Br2
D. Ca
9. What is the sign of(E) for a galvanic cell?
A. Positive
B. Negative
C. Either positive or negative
D. Zero
10. What is the sign of (ΔG) for a galvanic cell?
A. Positive
B. Negative
C. Either negative or positive
D. Zero
Drop your comment here...
