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Without losing its concentration, ZnCl(2...

Without losing its concentration, `ZnCl_(2)` solution can't be kept in contact with
(a) Au
(b) Al
(c) Pb
(d) Ag

A

Au

B

Al

C

Pb

D

Ag

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to determine which metal cannot be kept in contact with a zinc chloride solution without causing a change in concentration. ### Step-by-Step Solution: 1. **Understanding Reactivity Series**: The reactivity series is a list of metals arranged in order of decreasing reactivity. Metals higher in the series can displace those lower in the series from their compounds. 2. **Identifying the Metals**: The metals given in the options are: - (a) Au (Gold) - (b) Al (Aluminum) - (c) Pb (Lead) - (d) Ag (Silver) 3. **Analyzing Each Metal**: - **Gold (Au)**: Gold is less reactive than zinc and will not displace zinc from zinc chloride. - **Aluminum (Al)**: Aluminum is more reactive than zinc. It can displace zinc from zinc chloride. - **Lead (Pb)**: Lead is less reactive than zinc and will not displace zinc from zinc chloride. - **Silver (Ag)**: Silver is less reactive than zinc and will not displace zinc from zinc chloride. 4. **Conclusion**: Since aluminum is more reactive than zinc, it will react with zinc chloride solution and displace zinc, leading to a change in concentration. Therefore, zinc chloride solution cannot be kept in contact with aluminum. ### Final Answer: The correct option is **(b) Al (Aluminum)**. ---
To solve the question, we need to determine which metal cannot be kept in contact with a zinc chloride solution without causing a change in concentration. ### Step-by-Step Solution: 1. **Understanding Reactivity Series**: The reactivity series is a list of metals arranged in order of decreasing reactivity. Metals higher in the series can displace those lower in the series from their compounds. 2. **Identifying the Metals**: ...
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