Question

2. एक कार्बोनिल समूह वाले कीटोन में इनोल का प्रतिशत कितना
होता है?
What is the percent of enol in one carbonyl containing
ketone?​

Answer 1

Answer:

Often, the position of carbon atoms near a carbonyl group are designated by Greek letters. The atom adjacent to the carbonyl is alpha, the next removed is beta and so on. The carbon in the carbonyl group is used as reference point and is not assigned a Greek letter. Likewise, hydrogens bare the same Greek letter as the carbon atoms to which they are attached. α Hydrogens are bonded to α carbons and β hydrogens are bonded to β carbons etc.

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The presence of α hydrogens in a molecule provides the possibility of certain chemical reactions, which will be discussed in this chapter and Chapter 23. Because of this, the ability to identify α hydrogens is an important skill. As shown below, pentanal has two α hydrogens. Note that aldehyde hydrogens are not given a Greek letter, they are referred to simply as an aldehyde hydrogen.

Explanation: