Home
Class 12
CHEMISTRY
Iodoform test is not given by...

Iodoform test is not given by

A

2-pentanone

B

Ethanal

C

Ethanol

D

3-pentanone

Text Solution

Verified by Experts

The correct Answer is:
D
Iodoform test is given by compound which have
`CH_(3) - CO - "group or CH"_(2) - underset(OH)underset(|)overset(H)overset(|)(C) -` group
Hence, 2-pentanone, `CH_(3)CHO and C_(2)H_(5)OH` give this test and 3-pentanone does not give iodoform test.
`CH_(3) - COCH_(2) - CH_(2) - CH_(3) + 3I_(2) + 4NaOH rarr underset(("yellow ppt"))underset("Iodoform")(CHI_(3) darr) + CH_(3)CH_(2)CH_(2)COONa + 3Nal + 3H_(2)O`
`C_(2) H_(5)OH + 4I_(2) + NaOH rarr underset(("yellow ppt."))underset("Iodoform")(CHI_(3)darr) + HCOONa + 5 NaI + 5H_(2)O`
In the following reaction
`CH_(3) - CHO overset(I_(2) + NaOH)(rarr) CHI_(3) + HCOONa`
`CH_(3) - CH_(2) - CO - CH_(2) - CH_(3) + I_(2) + NaOH rarr` No reaction
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES, KETONES AND CARBOXYLIC ACID

    PHYSICS WALLAH|Exercise LEVEL - 2|30 Videos

  • ALDEHYDES, KETONES AND CARBOXYLIC ACID

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |16 Videos

  • ALCOHOLS, PHENOLS AND ETHERS

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |28 Videos

  • AMINES

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions |11 Videos

Similar Questions

Explore conceptually related problems

Positive iodoform test is given by

Iodoform test is given by ethanal OR propanal.

Between acetophenone and anisole, iodoform test is given by_____.

A copound which can give iodoform test , bromine water test , FeCl_(3) test but not Tollen's test

Which of the following organic compounds answers to both iodoform test and Fehling's test?

Which of the following compounds responds to both iodoform test and Fehling's Test?