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Alloy Formation

State a reaso...

Question

State a reason why zinc is used in:

(a) galvanisation, (b) dry cells, (c) cosmetics?

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Solution

(a) To prevent from rusting.
(b) Due to strong electropositive nature, it easily forms Zn⁺² ions.
(c) Antiseptic in face creams.

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State the reason why zinc is used in the galvanisation of iron and not copper.

Q. Assertion [A]: Zinc is used in galvanisation of iron.
Reason [R]: Galvanisation increases the life of iron articles by protecting them from rusting.

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