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प्रश्न
Give reason.
A wooden article should be polished.
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उत्तर
A wooden article should be polished because it protects the wooden article from sunlight and all other external conditions and also reduces the probability of wooden mites damaging the furniture.
संबंधित प्रश्न
Tinning : Tin : : Galvanizing : _________
Explain the term corrosion.
Give reasons:
Platinum, gold and silver are used to make jewellery.
Explain how painting of an iron gate prevents it from rusting.
What are the special properties of stainless steel?
Mention two uses of the following metals and non-metals
Iron
Name the metal which is a constituent of blood pigment?
What are the adverse effects of corrosion?
Give reason.
Copper and brass utensils should be tinned.
A man painted his main gate made up of iron, to
- prevent it from rusting.
- protect it from sun.
- make it look beautiful.
- make it dust free.
Which of the above statement(s) is/are correct?
