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प्रश्न
State two conditions necessary for rusting of iron.
अति संक्षिप्त उत्तर
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उत्तर
- The presence of water and oxygen is essential for the rusting of iron.
- Impurities in the iron, the presence of the water vapor, acids, salts and carbon dioxide hastens rusting.
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पाठ 8: Periodic Classification of Elements - Evaluation [पृष्ठ १२२]
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संबंधित प्रश्न
What is an alloy?
Explain the term corrosion.
Give reasons:
Platinum, gold and silver are used to make jewellery.
Name any two metals which do not corrode easily.
What are the constituents of stainless steel?
Brass is an alloy of:
(a) Cu and Sn
(b) Cu and Pb
(c) Pb and Sn
(d) Zn and Cu
Bronze : _______ : : Stainless steel : Fe + Cr + C
Complete flow chart given below.
Marble’s popularity began in ancient Rome and Greece, where white and off-white marble were used to construct a variety of structures, from hand-held sculptures to massive pillars and buildings.
The substance not likely to contain CaCO3 is:
Galvanisation is a process used to prevent the rusting of which of the following?
