Question

ASSERTION
Zinc’s non corrosive property is utilized in the process of galvanization.
REASON
Galvanization refers to an electrodeposition process used to add a thin layer of another metal to an item made of steel in order to prevent rusting.
A. Both assertion and reason are correct and reason is the correct explanation for assertion.
B. Both assertion and reason are correct but reason is not the correct explanation for assertion
C. Assertion is correct but reason is incorrect
D. Both assertion and reason are incorrect.

Answer 1

Galvanization also called galvanizing is a process of applying a protective zinc coating to steel or iron to avert rusting. The hot-dip galvanizing process is one in which the parts are submerged in a bath of molten hot zinc.

Complete step-by-step answer: Zinc is a chemical element having symbol Zn and atomic number 30. It is a brittle metal at room temperature and also features a blue silvery appearance when oxidation is removed. It is the primary element in group 12 of the periodic table. Also, it is the twenty-fourth most audit element in Earth’s crust and even has five stable isotopes. Corrosion resistant zinc plating of iron is the major application of zinc.
Galvanization also known as galvanizing is the procedure of applying a protective zinc coating to steel or iron to avert rusting. The most commonly known method is hot-dip galvanizing in which the parts of iron or steel are submerged in a bath of molten hot zinc. Galvanizing protects the underlying layer of iron or steel in the following ways:
The zinc coating prevents corrosive substances from reaching the core steel or iron.
For improved results, application of chromates over zinc is also seen as an industrial trend.
Also, in the event the basic metal becomes exposed, protection can continue as long as there is zinc close enough to be electrically coupled. After all of the zinc in the instant area is consumed, localized corrosion of the underlying metal can occur.
Although galvanizing will inhibit attack of the essential steel, rusting will be unavoidable after some decade’s exposure to weather particularly if it is exposed to acidic conditions. For example, iron sheet roofing will start to damage within a few years in spite of the protective act of zinc coating. Marine and salty environments also reduce the lifetime of galvanized iron due to the high electrical conductivity of sea water which increases the rate of corrosion mainly through converting the solid zinc to soluble zinc chloride and which simply washes away.

From the above information we get to know that both assertion and reason are correct and reason is the correct explanation of assertion. Therefore, the right answer here is option A.

Note: Zinc is a chemical element with non corrosive properties. Galvanization or galvanizing is the progression of applying a protective zinc coating to steel or iron to avert rusting. The zinc coating prevents corrosive substances from reaching the primary steel or iron.