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Organic Chemistry PYQ — Page 61

JEE Main Chemistry — Organic Chemistry previous year questions with solutions.

All Organic Chemistry Questions (1783)

The increasing order of the acidity of the following carboxylic acids is: ![JEE Main 2018 Chemistry, Carboxylic Acid Derivatives — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Carboxylic_Acid_Derivatives/648b5a65417cc3fb48d662ec/question_1__q_648b5a65417cc3fb48d662ec__cdn-question-pool.getmarks.app__RV1BGUAchTdYKCipMgMlIzqB3qyOirq2r5S08derjvk.original.fullsiz__4d9b1ba556_final_ppt_sync.png)

2018
medium
mcq

Which of the following compounds will most readily be dehydrated to give alkene under acidic condition?

2018
medium
mcq

Phenol reacts with methyl chloroformate in the presence of $\mathrm{NaOH}$ to form product $A.A$reacts with ${\mathrm{Br}}_{2}$ to form product $B.A\mathrm{and}B$ are respectively

2018
medium
mcq

The predominant form of histamine present in human blood is $({\mathrm{pK}}_{a},\mathrm{Histidine}=60)$

2018
medium
mcq

The increasing order of nitration in the acidic medium of the following compounds is: ![JEE Main 2018 Chemistry, Hydrocarbons — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Hydrocarbons/648b5a65417cc3fb48d66333/question_1__q_648b5a65417cc3fb48d66333__cdn-question-pool.getmarks.app__76945460-4730-4386-99b8-4268dcddad68-image__7b10c553c8_final_ppt_sync.png)

2018
medium
mcq

The main reduction product of the following compound with $\mathrm{NaBH}_4$ in methanol is : ![JEE Main 2018 Chemistry, Aldehydes and Ketones — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Aldehydes_and_Ketones/648b5a65417cc3fb48d66290/question_1__q_648b5a65417cc3fb48d66290__cdn-question-pool.getmarks.app__reJbOvZqPwsGrVazMtwoypFl6HFLGK2GAdsqRwY3XTw.original.fullsiz__e0f45f79e6_final_ppt_sync.png)

2018
medium
mcq

The correct match between items of List-I and List-II is : ![JEE Main 2018 Chemistry, General Organic Chemistry — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/General_Organic_Chemistry/648b5a65417cc3fb48d66280/question_1__q_648b5a65417cc3fb48d66280__cdn-question-pool.getmarks.app__Pxlcul8pKKLflD9NhoJv4_BsjEaKCGuL5a18V5PJFMg.original.fullsiz__9abaec863a_final_ppt_sync.png)

2018
easy
mcq

The IUPAC name of the following compound is : ![JEE Main 2018 Chemistry, General Organic Chemistry — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/General_Organic_Chemistry/648b5a65417cc3fb48d66286/question_1__q_648b5a65417cc3fb48d66286__cdn-question-pool.getmarks.app__0u6LwTQMAvvAPTVnfcdo40ktLGnk1poacEl2HqqtxNQ.original.fullsiz__2dd08a534a_final_ppt_sync.png)

2018
easy
mcq

The major product formed in the following reaction is: ![JEE Main 2018 Chemistry, Alcohols Phenols and Ethers — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Alcohols_Phenols_and_Ethers/648b5a65417cc3fb48d662e5/question_1__q_648b5a65417cc3fb48d662e5__cdn-question-pool.getmarks.app__4uvtZt63wMErlneqxbfxnICmxHYPdGRi0QzonmhhBR8.original.fullsiz__d5097bcfc9_final_ppt_sync.png)

2018
medium
mcq

The main reduction product of the following compound with ${\mathrm{NaBH}}_{4}$ in methanol is: ![JEE Main 2018 Chemistry, Aldehydes and Ketones — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Aldehydes_and_Ketones/648b5a65417cc3fb48d66344/question_1__q_648b5a65417cc3fb48d66344__cdn-question-pool.getmarks.app__197817ad-6b76-445f-bd5a-5e3f81669f86-image__a1ef69cc3d_final_ppt_sync.png)

2018
medium
mcq

Two compounds I and II are eluted by column chromato-graphy(adsorption of I $>$ II). Which one of the following is a correct statement?

2018
easy
mcq

The major product formed in the following reaction is: ![JEE Main 2018 Chemistry, Alcohols Phenols and Ethers — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Alcohols_Phenols_and_Ethers/648b5a65417cc3fb48d6622e/question_1__q_648b5a65417cc3fb48d6622e__cdn-question-pool.getmarks.app__mphiujirfozgdjzjkzneptmviounhtcafjbskfnxncyxchitax__33ed96682c_final_ppt_sync.jpeg)

2018
medium
mcq

The reagent(s) required for the following conversion are: ![JEE Main 2018 Chemistry, Aldehydes and Ketones — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Aldehydes_and_Ketones/648b5a65417cc3fb48d66343/question_1__q_648b5a65417cc3fb48d66343__cdn-question-pool.getmarks.app__dfda5284-07d3-4cb4-8643-078f4ff5dd0c-image__381c10777f_final_ppt_sync.png)

2018
easy
mcq

Which of the following will not exist in Zwitterionic form at $\mathrm{pH}=7$?

2018
medium
mcq

The dipeptide, Gln-Gly, on treatment with $\mathrm{CH}_3 \mathrm{COCl}$ followed by aqueous work up gives.

2018
medium
mcq

The major product B formed in the following reaction sequence is: ![JEE Main 2018 Chemistry, Aldehydes and Ketones — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Aldehydes_and_Ketones/648b5a65417cc3fb48d66386/question_1__q_648b5a65417cc3fb48d66386__cdn-question-pool.getmarks.app__51752c68-c016-4052-b68e-ea7676745c78-image__623ef0cc41_final_ppt_sync.png)

2018
medium
mcq

Products A and B formed in the following reactions are respectively: ![JEE Main 2018 Chemistry, Amines — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Amines/648b5a65417cc3fb48d66384/question_1__q_648b5a65417cc3fb48d66384__cdn-question-pool.getmarks.app__0ab03d31-002e-4608-b353-b6937f79579c-image__9113f01f23_final_ppt_sync.png)

2018
hard
mcq

Which of the following is the correct structure of adenosine ?

2018
easy
mcq

On the treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is: ![JEE Main 2018 Chemistry, General Organic Chemistry — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/General_Organic_Chemistry/648b5a65417cc3fb48d662e0/question_1__q_648b5a65417cc3fb48d662e0__cdn-question-pool.getmarks.app__1vYpa-ON1_pGfQpI9Jrz41w06CCIbxDMiIwKiPJdW04.original.fullsiz__ff9dbe3204_final_ppt_sync.png)

2018
medium
mcq

The major product of the following reaction is: ![JEE Main 2018 Chemistry, Alcohols Phenols and Ethers — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Alcohols_Phenols_and_Ethers/648b5a65417cc3fb48d66330/question_1__q_648b5a65417cc3fb48d66330__cdn-question-pool.getmarks.app__1cb3652a-b352-4955-8d14-6d33c59a363e-a457a4d5-458a-4475-ae54__189170a414_final_ppt_sync.png)

2018
easy
mcq

Which of the following compounds will be suitable for Kjeldahl's method for nitrogen estimation?

2018
easy
mcq

The major product of the following reaction is: ![JEE Main 2018 Chemistry, Haloalkanes and Haloarenes — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Haloalkanes_and_Haloarenes/648b5a65417cc3fb48d66388/question_1__q_648b5a65417cc3fb48d66388__cdn-question-pool.getmarks.app__a27b0a4b-5bd4-4430-8e01-006164640afd-image__839dd1241f_final_ppt_sync.png)

2018
easy
mcq

The major product formed in the following reaction is: ![JEE Main 2018 Chemistry, Hydrocarbons — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Hydrocarbons/648b5a65417cc3fb48d662db/question_1__q_648b5a65417cc3fb48d662db__cdn-question-pool.getmarks.app__sXoq-SUm4KAoRwwAP-YjQKaZZwPjkUO9WVAt85GCxn0.original.fullsiz__03183a86fc_final_ppt_sync.png)

2018
medium
mcq

When 2-butyne is treated with $\mathrm{H}_2$ /Lindlar's catalyst, compound $\mathrm{X}$ is produced as the major product and when treated with $\mathrm{Na}$ /liq. $\mathrm{NH}_3$ it produces $\mathrm{Y}$ as the major product. Which of the following statements is correct?

2018
medium
mcq