Concept explainers
Interpretation:
The reactions needs to be explained when Al is placed in KCl and AgNO3.
Concept introduction:
The reactivity series of metals is as follows:
Lithium > Rubidium > Potassium > Calcium > Sodium > Magnesium > Aluminium > Manganese > Zinc > Iron > Nickel > Tin > Lead > Copper > Silver > Platinum > Gold
Answer to Problem 119A
In the first reaction, aluminium metal is placed in aqueous
In this reaction, potassium is more reactive than aluminium according to the reactivity series of metals. Therefore, aluminium will not displace potassium and hence, the reaction will not proceed.
In the second reaction, another piece of aluminium is placed in an aqueous
In this reaction, aluminium is more reactive than silver. Therefore, aluminium will displace silver in the solution and hence the reaction will proceed.
Explanation of Solution
The reactivity series of metals is as follows:
Lithium > Rubidium > Potassium > Calcium > Sodium > Magnesium > Aluminium > Manganese > Zinc > Iron > Nickel > Tin > Lead > Copper > Silver > Platinum > Gold
The metal higher on the series is the most active and will not be precipitated. The metal lower on the series is less active and hence will be precipitated.
In the first reaction, aluminium metal is placed in aqueous
In this reaction, potassium is more reactive than aluminium according to thereactivity series of metals. Therefore, aluminium will not displace potassium and hence, the reaction will not proceed.
In the second reaction, another piece of aluminium is placed in an aqueous
In this reaction, aluminium is more reactive than silver. Therefore, aluminium will displace silver in the solution and hence the reaction will proceed.
In the first reaction,
In the second reaction,
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