Chemistry - Study Mode

[#521] The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called :
Correct Answer

(D) Galvanization

Explanation

Solution: Galvanization or galvanizing (also spelled galvanisation or galvanising) is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are submerged in a bath of molten hot zinc.

[#522] Galvanization of iron is carried out using
Correct Answer

(A) Zinc

Explanation

Solution: Galvanisation or galvanization (or galvanizing as it is most commonly called) is the process of applying a protective zinc coating to iron or steel, to prevent rusting. The most common method is hot dip galvanizing, in which steel sections are submerged in a bath of molten zinc.

[#523] The working of a dry cell is based on
Correct Answer

(D) Electrolysis

Explanation

Solution: A dry cell is a type of battery that uses a paste electrolyte, with only enough moisture to allow current to flow. It works in accordance with Faraday’s law of electrolysis. It consists of an outer case made of zinc (the negative electrode), a carbon rod in the center of the cell (the positive electrode), and the space between them is filled with an electrolyte paste. In operation the electrolyte, causes the electrons to flow and produce electricity.

[#524] Galvanization is the :
Correct Answer

(A) Deposition of zinc on iron

Explanation

Solution: Galvanisation or galvanization (or galvanizing as it is most commonly called) is the process of applying a protective zinc coating to iron or steel, to prevent rusting. The most common method is hot dip galvanizing, in which steel sections are submerged in a bath of molten zinc.

[#525] Which one of the following metals is used to galvanise iron ?
Correct Answer

(C) Zinc

Explanation

Solution: Zinc is used for galvanising iron to protect it from rusting.