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Give chemical test to distinguish : ethy...

Give chemical test to distinguish : ethyl alcohol and sec - propyl alcohol.

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Ethanol gives iodoform test whereas sec-propyl alcohol does not gives iodoform test.
(a) `underset("Ethyl alcohol")(CH_(3)CH_(2)OH)+NaOI overset(NaOH, I_(2))to underset(("Iodoform"))(CH_(3)CHO) +NaI +H_(2)O`
`CH_(3)CHO +3NaOI to underset(("Iodoform")) underset("Yellow ppt.")(CHI_(3)) +HCOONa +2NaOH`
(b) `underset("sec-propyl alcohol")(CH_(3)-overset(OH)overset(|)(CH)-CH_(3)) overset(NaOH,I_(2))to` No reaction
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