Question
Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques
The test to differentiate between pentan - 2 - one and pentan - 3 - one is
A
Fehling's Test
B
Baeyer's test
C
Iodoform test
D
Benedict's test
Answer
Iodoform test
Explanation
Solution
"The iodoform test is used to identify compounds containing a methyl ketone (CH3CO-) group or a methyl carbonyl group. In this test, the compound is treated with iodine (I2) in the presence of a base, typically sodium hydroxide (NaOH) or potassium hydroxide (KOH). If the compound contains a methyl ketone group, such as pentan-3-one, it will react with iodine to produce a yellow precipitate of iodoform (CHI3). On the other hand, if the compound does not contain a methyl ketone group, such as pentan-2-one, no yellow precipitate will form.
Therefore, the correct answer is (C) Iodoform test."