Reactivity Series
Reactivity Series
Reactivity Series:
The reactivity series of the metals, also known as the activity series, refers to the arrangement of metals in the descending order of the reactivities. The reactivity of metals differs from metal to metal. Some of the metals are more reactive, while others are less reactive towards chemical reagents. The metals that can lose electrons easily and form positively charged ions are more reactive. Those that cannot lose electrons easily are less reactive. Metals can be arranged in the order of decreasing reactivity in a series. This series is called the activity or reactivity series of metals.
The series has been derived after studying many chemical reactions. Copper (Cu), mercury (Hg) and silver (Ag) react with HNO3, but do not produce H2. In these reactions, the metal is oxidized to the metal ion and ion is reduced to
or other nitrogen species. It may be asked, why hydrogen, being a nonmetal, has been included in the activity series. It is because hydrogen, like metals, can part with its electron to form a positive ion or cation.
Which of the following are correct : (a) Potassium is the highly reactive metal. (b) Gold is the least reactive metal. | |||
| Right Option : C | |||
| View Explanation | |||
The metals that can _______________ electrons easily and form positively charged ions are more reactive. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct : (a) The metals that can lose electrons easily and form positively charged ions are more reactive. (b) The metals that do not lose electrons easily are less reactive. (c) The metals that do not lose electrons easily are more reactive. | |||
| Right Option : A | |||
| View Explanation | |||
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