Chemical Effect...

A major drawback of the primary cell is that

During the charging process, the relative density of the electrolyte

The active materials on the positive and negative plates, respectively, of a fully charged lead-acid battery are

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 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?

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?

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.