The test to differentiate between pentan - 2 - one and pentan - 3 - one is
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.
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
You are given a dipole of charge \( +q \) and \( -q \) separated by a distance \( 2l \). A sphere 'A' of radius \( R \) passes through the centre of the dipole as shown below and another sphere 'B' of radius \( 2R \) passes through the charge \( +q \). Then the electric flux through the sphere A is
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.
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