Reactivity series of metals is mainly based on tendency to:
Lose electrons
The reactivity series of metals is based on their tendency to lose electrons and form positive ions -- the more readily a metal loses electrons, the higher it ranks in the reactivity series.
A displacement reaction will most likely occur when:
Corrosion of metals is minimised in practice by:
Which one of the following changes is most appropriately classified as a physical change with underlying chemical interaction reversible on conditions?
Rusting of iron in presence of moist air is an example of:
An iron nail dipped in copper sulphate solution turns brown. This is due to which one of the following types of reactions?
Copper sulphate crystals available in the market are blue coloured crystals. By careful heating, they turn to white colour. Which one of the following is responsible for the blue colour?
Airbags work on the principle of a chemical reaction triggered by the impact producing a gaseous product that causes a sudden volume change. Which one among the following chemical conversions is responsible for this?
Which one of the following is the correct reactivity series with water?
Silver artefacts get tarnished in air due to the formation of