Chemical Effect...

An electrochemical cell stops working after some time because

Why is it advised to wear rubber slippers while handling the electrical appliances?

When the current through a circuit is too weak, the bulb does not glow because the

What happens when electric current is passed through a silver nitrate solution?

Which of the following statements is/are false?

a. A solution of hydrochloric acid or sulphuric acid in water conducts electricity.
b. Vinegar does not conduct electricity as it is a solution of a non- electrolyte
c. An arrangement having two electrodes kept in a conducting liquid in a vessel is called an electrolytic cell.

Which of the following solutions are non-electrolytes?

a. Glucose solution
b. Vinegar solution
c. Alcohol solution
d. Common salt solution

Which of the following statements is/are false?

a. Caustic soda is produced by the electrolysis of an aqueous solution of sodium chloride.
b. If we take distilled water in a beaker and pass electricity through it, then the bulb will not glow at all even if a large battery is applied.
c. A solution of sodium hydroxide or potassium hydroxide in water conducts electricity.

Which of the following gases is formed at the anode, connected to the positive terminal of the battery, when electric current is passed through acidified water?

When an electric current flows through a conducting solution, it causes a chemical change. The chemical reactions brought about by an electric current will not produce which of the following effects?

a. Change in the colour of the solution may occur.
b. Deposits of metal will be formed on the sides of the glass container.
c. Bubbles of a gas or gases may be formed on the electrodes.