Chemical Effect...

The electrolyte in the Leclanche`s cell is a moist paste of ammonium chloride, containing _____ chloride in a ____ cup.

Which of the following statements about electroplating is incorrect?

Which among the following is a non-electrolyte?

Which of the following statements is/are true?

(a) The passage of electric current through a conducting solution can cause a chemical reaction to take place.
(b) The passage of electric current through a conducting solution can cause a physical reaction.

We have distilled water in two plastic bottles labelled as A and B. We add hydrochloric acid to the water in bottle A and caustic soda to the water in bottle B. Which of the following will hold true?

Why are cans, used for storing food, made of electroplated tin instead of iron?

Which of the following statements is true for the purification of copper?

A test lamp does not glow while testing the conductivity of a liquid. What does it imply?

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?

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

What serves as the cathode in a common dry cell?

Electricity is produced in a dry cell from

Choose the incorrect statement(s) from the following:

(A) Ammonium chloride is used as the electrolyte in a dry cell.
(B) Man­ganese dioxide is used as a depolariser.
(C) Zinc chloride can be used as an electrolyte.
(D) Sodium chloride can also be used as a depolariser.

During the charging of a lead-acid battery, the density of sulphuric acid

Choose the incorrect statement:

During the discharging of a lead-acid battery,