Question

Methyl ketone is identified by:

• A. lodoform test
• B. Fehling solution
• C. Tollens reagent
• D. Schiffs reagent

Answer 1

Answer: (A)

(a) lodoform test is done to detect presence of $C{H}_{3}CO$ group in organic compounds.
(b) Fehling solution identifies aldehydes
(c) Tollens reagent identifies aldehydes
(d) Schiffs reagent identifies aldehydes
Methyl ketone is $C{H}_3-\stackrel{O}{\stackrel{||}{C}}-R.$
$\because$ It has $C{H}_3-\stackrel{O}{\stackrel{||}{C}}$
group. It is tested by using iodoform test. The compound having $C{H}_{3}CO$ group give yellow ppt. on reaction with $I_2$ and aqueous alkali.