Q44 / 150 · MHT CET 2008 · Chemistry
Iodoform test is not given by
- A2 -pentanone
- Bethanol
- Cethanal
- Correct answerD3-pentanone
Solution
Iodoform test is given by compounds which have
group or
group, Hence, $\quad$ 2-pentanone, $\mathrm{CH}_{3} \mathrm{CHO}$ and $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$ give this test. But 3-pentanone $\left(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{2} \mathrm{CH}_{3}\right)$ does not give iodoform test.
group or
group, Hence, $\quad$ 2-pentanone, $\mathrm{CH}_{3} \mathrm{CHO}$ and $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$ give this test. But 3-pentanone $\left(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COCH}_{2} \mathrm{CH}_{3}\right)$ does not give iodoform test.
Hence, the correct answer is option: 'D'.