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प्रश्न
Which metals do not corrode easily?
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उत्तर
Metals which have low reactivity such as silver, platinum, gold does not corrode easily.
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संबंधित प्रश्न
Give reasons:
Platinum, gold and silver are used to make jewellery.
Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.
What is the corrosion of iron known as?
What are the constituents of stainless steel?
A common metal which is highly resistant to corrosion is:
(a) iron
(b) copper
(c) aluminium
(d) magnesium
State under what conditions corrosion is faster ?
Give reason for the following:
A suspension of rust is basic in nature.
Write a short note on Alloying.
Observe the following picture and answer the following questions:
- What is rust?
- Write the chemical formula of rust.
- Write the reaction of oxidation of iron at the anode.
- Write the reaction of oxidation of iron at the cathode.
- What is corrosion?
Which of the following method is used to prevent the accumulation of greenish layer on brass due to corrosion?
To prevent corrosion of iron and steel _______ method is used.
_______ forms a green colour in the water.
Rusting of iron : Fe2O3 : : corrosion of copper : ______
Write scientific reason.
Coins are made from metals and alloys.
Explain concept with example/explain with the help of a balanced equation.
Corrosion
Galvanisation is a process used to prevent the rusting of which of the following?
State whether the following statement is true or false:
Ships suffer a lot of damage though they are painted.
Give scientific reasons.
Silver amalgam is used for filling dental cavities.
In ______ process a layer of molten tin is deposited on metals.
