Organic Compounds Containing Oxygen JEE Mains Questions - List Of Most Asked Questions With Solutions

NTA will shortly release the JEE Main Syllabus 2025 at jeemain.nta.ac.in. Last Year, the complete syllabus of JEE Main underwent some major changes. According to the latest syllabus guidelines, the weightage of Physics has dropped to 22.5%. Due to these changes in the syllabus, certain shifts in chapter-wise weightage have been observed. Organic Compounds Containing Oxygen are among such topics. It’s among the least weightage topics in JEE Main Physics Syllabus 2025. This chapter holds 1.39% weightage in the whole syllabus.

• Organic Compound Containing Oxygen is a part of the General Physics section, and every year around 2-3 questions are asked from this chapter. Due to the drop in weightage, you can expect 1-2 questions in JEE Main 2025.
• Organic Compound Containing Oxygen in JEE Mains Physics Syllabus 2025 covers all the basic concepts on units and measurements, fundamentals of units, dimensions etc.

Aspirants consider Organic Compound Containing Oxygen as one of the Easiest Chapters in Physics for JEE Main 2025. Even though this chapter has the least weightage in the syllabus, to develop a strong foundation in physics, this particular chapter plays a pivotal role. Hence the candidates need to develop a clear understanding of this chapter. The list of most asked questions from this chapter will help the students with their preparation.

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Here are some common questions and topics related to organic compounds containing oxygen for JEE Main:

1. What are some important topics?
2. Topics include alcohols and phenols, ethers, aldehydes and ketones, carboxylic acids and derivatives, reaction mechanisms, and application and significance.
3. What are some examples of oxygen-containing organic compounds?
4. Examples include glycerol, formaldehyde, glutaraldehyde, citric acid, acetic anhydride, and acetamide.
5. How can you identify metameric ethers?
6. You can use the reaction of PCl5 or SOCl2 to identify metameric ethers.
7. What is the difference between organic and inorganic compounds?
8. Organic compounds contain carbon atoms, while inorganic substances do not. Water is an inorganic compound because it does not contain carbon.

Organic Compound Containing Oxygen JEE Mains Questions -

List Of Most Asked Questions With Solutions

In the (JEE) Main, the topic of Physics and Measurement often features questions that have appeared multiple times in previous years. Many questions in this section are either repeated or follow similar patterns, with only minor changes, such as different numerical values or slight modifications in wording.Certain questions have been repeated as many as five times.

Here are some of the most frequently asked and repeated questions:

Question 1:

What is the IUPAC name of CH3-CH2-OH?

Solution: The correct answer is Ethanol.

Explanation: The IUPAC name of CH3-CH2-OH is ethanol.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 2:

What product is formed when ethanol is oxidized by acidified potassium dichromate?

Solution: The correct answer is Ethanoic acid.

Explanation: Ethanol is oxidized to ethanoic acid by acidified potassium dichromate.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 3:

Which reagent is used for the oxidation of primary alcohols to aldehydes?

Solution: The correct answer is PCC.

Explanation: Pyridinium chlorochromate (PCC) is used to oxidize primary alcohols to aldehydes.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 4:

What is the major product formed in the reaction of phenol with bromine in CS2?

Solution: The correct answer is 2,4,6-tribromophenol.

Explanation: Phenol reacts with bromine in CS2 to form 2,4,6-tribromophenol.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 5:

Which of the following is a nucleophilic addition reaction?

Solution: The correct answer is the reaction of aldehyde with HCN.

Explanation: Nucleophilic addition occurs when an aldehyde reacts with HCN.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 6:

Which alcohol does not undergo oxidation?

Solution: The correct answer is Tertiary alcohol.

Explanation: Tertiary alcohols resist oxidation due to the lack of a hydrogen atom on the alpha carbon.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 7:

Which of the following reactions involves the formation of an ester?

Solution: The correct answer is the reaction of carboxylic acid with alcohol.

Explanation: Esterification occurs when a carboxylic acid reacts with alcohol in the presence of an acid catalyst.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 8:

What is the product of the reaction between acetone and hydroxylamine?

Solution: The correct answer is Acetone oxime.

Explanation: Acetone reacts with hydroxylamine to form acetone oxime.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 9:

What is the reagent used for the oxidation of aldehydes to carboxylic acids?

Solution: The correct answer is Tollen's reagent.

Explanation: Aldehydes are oxidized to carboxylic acids using Tollen's reagent.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)

Question 10:

Which is the product of the reduction of an aldehyde?

Solution: The correct answer is Primary alcohol.

Explanation: Aldehydes are reduced to primary alcohols.

(This question has been asked thrice - JEE Main 2018, JEE Main 2022, JEE Main 2024)