Advertisements
Advertisements
प्रश्न
Give reason for the following:
A suspension of rust is basic in nature.
Advertisements
उत्तर
Rust is formed by oxidation of iron in air in presence of moisture. The main constitutent of rust is Iron(III) oxide [Fe2O3.xH2O] which is a metallic oxide. Hence, all metallic oxides are basic in nature. Therefore, a suspension of rust is basic in nature.
APPEARS IN
संबंधित प्रश्न
Give reasons:
Platinum, gold and silver are used to make jewellery.
Explain why rusting of iron objects is faster in coastal areas than in deserts.
Explain why Iron sheets are coated with zinc during galvanization.
Why is an iron grill painted frequently?
What is corrosion?
A common metal which is highly resistant to corrosion is:
(a) iron
(b) copper
(c) aluminium
(d) magnesium
If copper is kept exposed to damp air for a considerable time, it gets a green coating on its surface. This is due to the formation of:
(a) hydrated copper sulphate
(b) copper oxide
(c) basic copper carbonate
(d) copper nitrate
Explain how the activity series accounts for each of the following:
tendency to corrosion
Stainless steel is an alloy of _______.
Give scientific reasons.
Silver amalgam is used for filling dental cavities.
