State two ways to prevent the rusting of iron.
State two ways to prevent the rusting of iron.
Two ways to prevent the rusting of iron are :
$(i)$ Oiling, greasing, or painting : By applying oil, grease, or paint, the surface becomes water proof and the moisture and oxygen present in the air cannot come into direct contact with iron. Hence, rusting is prevented.
$(ii)$ Galvanisation : An iron article is coated with a layer of zinc metal, which prevents the iron to come in contact with oxygen and moisture. Hence, rusting is prevented.
Similar Questions
Food cans are coated with tin and not with zinc because
Food cans are coated with tin and not with zinc because
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
Metal
Zinc
Magnesium
Copper
Zinc oxide
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-
-
Magnesium oxide
-
-
-
Copper oxide
-
-
-
In which cases will you find displacement reactions taking place ?
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
| Metal | Zinc | Magnesium | Copper |
| Zinc oxide | - | - | - |
| Magnesium oxide | - | - | - |
| Copper oxide | - | - | - |
In which cases will you find displacement reactions taking place ?
A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
Give reasons : Platinum, gold and silver are used to make jewellery.
Give reasons : Platinum, gold and silver are used to make jewellery.
Which of the following pairs will give displacement reactions ?
Which of the following pairs will give displacement reactions ?