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Write a chemical test to distinguish bet...

Write a chemical test to distinguish between benzaldehyde and acetaldehyde.

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(i) Acetaldehyde gives yellow ppt. with an alkaline solution of iodine(Iodoform test).
`underset("Acetaldehyde")(CH_(3)-CHO)+4I_(2)+6NaOH) rarr underset("Iodoform")(CHI_(3)+HCOONa)+3NaI+3H_(2)O`
Benzaldehyde does not give this test.
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