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STATEMENT 1: Electroysis of molten PbBr ...

STATEMENT 1: Electroysis of molten `PbBr` using plantinum electrodes produces `Br_(2) at anode and
STATEMENT 2: `Br_(2)` is obtained in gaseous state at room temperature

A

Statement 1 is ture , Statement 2 is true Statement 2 is correct explanation for Statement 2

B

Statement 1 is true Statement 2 is ture Statement 2 is NOT a correct explantion for Statement 2

C

Statement 1 is true statement 2 is ture

D

Statement 1 is false Statement 2 is true

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both statements regarding the electrolysis of molten lead(II) bromide (PbBr2) and the state of bromine (Br2) at room temperature. ### Step-by-Step Solution: 1. **Understanding Electrolysis of PbBr2**: - When molten PbBr2 is subjected to electrolysis, it dissociates into its ions: Pb²⁺ and Br⁻. - The electrolysis process involves two electrodes: the anode (positive electrode) and the cathode (negative electrode). 2. **Reactions at the Electrodes**: - **At the Cathode**: Reduction occurs. The Pb²⁺ ions gain electrons to form lead (Pb). \[ \text{Pb}^{2+} + 2e^- \rightarrow \text{Pb (s)} \] - **At the Anode**: Oxidation occurs. The Br⁻ ions lose electrons to form bromine (Br2). \[ 2\text{Br}^- \rightarrow \text{Br}_2 (g) + 2e^- \] 3. **Analyzing Statement 1**: - Statement 1 claims that electrolysis of molten PbBr2 using platinum electrodes produces Br2 at the anode. - This statement is **true** because bromine gas (Br2) is indeed produced at the anode during the electrolysis of PbBr2. 4. **Analyzing Statement 2**: - Statement 2 claims that Br2 is obtained in the gaseous state at room temperature. - This statement is **false** because at room temperature, bromine exists as a liquid (Br2) and not as a gas. While Br2 can exist as a gas at higher temperatures, it is a liquid at standard room temperature (around 25°C). 5. **Conclusion**: - Therefore, Statement 1 is true, and Statement 2 is false. ### Final Answer: - Statement 1 is true, and Statement 2 is false.
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