The test to differentiate between pentan - 2 - one and pentan - 3 - one is
The test to differentiate between pentan - 2 - one and pentan - 3 - one is
- Fehling's Test
- Baeyer's test
- Iodoform test
- Benedict's test
The Correct Option is C
Approach Solution - 1
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.
Approach Solution -2
Test to Differentiate Between Pentan-2-one and Pentan-3-one
Pentan-2-one is a methyl ketone and gives a positive Iodoform test.
Pentan-3-one does not have the required methyl group adjacent to the carbonyl and hence does not give Iodoform test.
Correct Answer: Iodoform test
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Organic Chemistry is a subset of chemistry dealing with compounds of carbon. Therefore, we can say that Organic chemistry is the chemistry of carbon compounds and is 200-225 years old. Carbon forms bond with itself to form long chains of hydrocarbons, e.g.CH4, methane and CH3-CH3 ethane. Carbon has the ability to form carbon-carbon bonds quite elaborately. Polymers like polyethylene is a linear chain where hundreds of CH2 are linked together.
Read Also: Organic Compounds
Importance of Organic Chemistry:
Organic chemistry is applicable in a variety of areas including-
- Medicines: Example- Aspirin which is a headache medicine and Ibuprofen is a painkiller, both are organic compounds. Other examples include paracetamol.
- Food: Example- Starch which is a carbohydrate is an organic compound and a constituent of rice and other grains. It is the source of energy.
- Clothing: Example- Nylon, Polyester and Cotton are forms of organic compounds.
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