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When an old sample of ether was heated, it exploded.

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When an old sample of ether was heated, it exploded.

1. What is the reason for this phenomenon? 

2. How can you detect peroxide content in ether?

3. How can we remove peroxide from old sample of ether?

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1. Due to the formation of peroxide.

2. Presence of peroxide can be tested by adding ferrous salt solution followed by addition of KCNS solution. Formation of blood red colour indicates the presence of peroxide.

3. The peroxide can be removed by washing with ferrous salt solution.

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