Chemistry
Explain why:
(a) Cu, though a good conductor of electricity, is a non electrolyte.
(b) Solid sodium chloride does not allow electricity to pass through.
Electrolysis
91 Likes
Answer
(a) Copper does not undergo chemical decomposition due to flow of electric current through it. Hence, copper is a good conductor of electricity but it is a non-electrolyte.
(b) In solid sodium chloride, ions Na+ and Cl- are not free to move due to the strong electrostatic forces. Hence, solid sodium chloride does not allow electricity to pass through it.
Answered By
59 Likes
Related Questions
Electrolysis is a redox process. Explain.
Classify the following substances under three headings:
(a) strong electrolytes
(b) weak electrolytes
(c) non-electrolytes
Acetic acid, ammonium chloride, ammonium hydroxide, carbon tetrachloride, dilute hydrochloric acid, sodium acetate, dilute sulphuric acid.
Choose A, B, C or D to match the descriptions (i) to (v) below. Some alphabets may be repeated.
A. non-electrolyte
B. strong electrolyte
C. weak electrolyte
D. metallic conductor
(i) Molten ionic compound
(ii) Carbon tetrachloride
(iii) An aluminium wire
(iv) A solution containing solvent molecules, solute molecules and ions formed by the dissociation of solute molecules.
(v) A sugar solution with sugar molecules and water molecules.
An electrolyte which completely dissociates into ions is:
a. Alcohol
b. Carbonic acid
c. Sucrose
d. Sodium hydroxide