Why is chromium plating done on many objects such as car parts, bath taps etc.? Why is steel not preferred as a car part or a bath tap? [ 3 MARKS ]

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Solution

Reasoning out: 1.5 Marks each.

Chromium has a shiny appearance. It does not corrode easily as it is not very reactive with oxygen , resists scratches. However, chromium is expensive and it may not be economical to make the whole object out of chromium. So the object is made from a cheaper metal and only a coating of chromium over it is deposited.

Steel corrodes easily. Chromium does not .It protects it and gives it a better appearance. Thats why chromium is much preferred for coating on steel objects.

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Q. Why is chromium plated on objects like car parts, bath taps, kitchen gas burners, bicycle handlebars, wheel rims etc.?

Q. _________ plating is done on objects such as car parts, bath taps, kitchen gas burners, bicycle handlebars, wheel rims because of its shiny appearance

Q. Instead of taking the trouble of electroplating metals with chromium for making car parts, taps, cycle parts, etc. why are these objects not made of chromium itself?

Q) Instead of taking the trouble of electroplating metals with chromium for making car parts , taps , cycle parts , etc., why are these objects not made up of chromium itself ?

A) This is because chromium is a very expensive metals . It is a metal which does not rust is resistant from scratches and has a shiny appearance . If we use chromium it will be a huge loss and it also be wastage of the resource chromium thus it is preferable to use chromium only for electroplating objects.

Could you please check my answer and give inputs.

Q. Assertion:Chromium plating is done on many objects like car parts, wheel rims and bath taps.
Reason:The chromed layer can be decorative, provide corrosion resistance, ease cleaning procedures, or increase surface hardness.

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