Question

vi) Food staff containers should not be
a) Galvanized
b) Electroplated
c) Tinned
d) none of these​

Answer 1

Answer:

Tinned

In galvanization process , zinc is used to coat on iron . The chemical reactivity of Zinc is much more than that of tin . Hence , food atuff cannot be stored in galvanized container . Tin coated iron containers are used to preserve food.

Answer 2

a) Galvanized

• The process of adding a protective zinc coating to iron or steel in order to stop rusting is known as galvanization (or, more often, galvanising). The most used technique is hot dip galvanising, which involves immersing steel pieces in a bath of molten zinc.
• Sheets of galvanised corrugated iron were viewed as fascinating and elegant in mid-19th-century Britain. The idea of giving iron sheets more rigidity not only made it possible to build wide-span roofs without the need for heavy load-bearing walls, but it also gave them a fresh appearance in a constructed environment where stone and timber predominated. The reflective substance that was silvery in colour represented development and industrial success.
• The technique of tinning involves coating iron with molten tin, which has food uses. Because zinc dissolves in food acids and forms hazardous chemicals, galvanized steel cannot be used for food containers.

Hence, option a is correct.

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