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Few drops of salt solution are shaken wi...

Few drops of salt solution are shaken with chloroform followed by chlorine water. Chloroform layer becomes orange. Solution contains:

A

`NO_(2)^(-)` ions

B

`NO_(3)^(-)` ions

C

`Br^(-)` ions

D

`I^(-)` ions

Text Solution

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The correct Answer is:
To solve the question, we need to analyze the reaction that occurs when a salt solution is shaken with chloroform and chlorine water. Here’s a step-by-step breakdown: ### Step-by-Step Solution: 1. **Identify the Salt Solution**: - The question mentions a "salt solution." A common salt that contains bromide ions (Br-) is sodium bromide (NaBr). Therefore, we can assume that the salt solution is NaBr. 2. **Understanding the Components**: - The components involved in the reaction are: - Sodium bromide (NaBr) in the salt solution. - Chloroform (CHCl3), which is a solvent. - Chlorine water (Cl2 in water), which is a source of chlorine. 3. **Reaction with Chlorine Water**: - When sodium bromide is treated with chlorine water, a reaction occurs where bromide ions (Br-) are oxidized to bromine (Br2). The reaction can be represented as: \[ 2 \text{NaBr} + \text{Cl}_2 \rightarrow 2 \text{NaCl} + \text{Br}_2 \] - In this reaction, sodium chloride (NaCl) is formed, and bromine (Br2) is released. 4. **Color Change in Chloroform**: - Bromine (Br2) is known to impart an orange color to organic solvents like chloroform. When the chloroform layer is shaken with the solution containing bromine, it turns orange due to the presence of bromine. 5. **Conclusion**: - The presence of bromide ions (Br-) in the salt solution is responsible for the formation of bromine (Br2) when reacted with chlorine water. This bromine is what causes the chloroform layer to turn orange. ### Final Answer: The solution contains sodium bromide (NaBr), which leads to the formation of bromine (Br2) when reacted with chlorine water, causing the chloroform layer to become orange.
To solve the question, we need to analyze the reaction that occurs when a salt solution is shaken with chloroform and chlorine water. Here’s a step-by-step breakdown: ### Step-by-Step Solution: 1. **Identify the Salt Solution**: - The question mentions a "salt solution." A common salt that contains bromide ions (Br-) is sodium bromide (NaBr). Therefore, we can assume that the salt solution is NaBr. 2. **Understanding the Components**: ...
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