In the reaction, the electrophile involved is ![NEET 2018 Chemistry, Alcohols Phenols and Ethers — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/616059730283de43c87e3e22/Chemistry/images/Alcohols_Phenols_and_Ethers/66bcbfb1ae81d148616b235a/question_1__q_66bcbfb1ae81d148616b235a__cdn-question-pool.getmarks.app__e69696fd-f742-43b9-9a4c-d28c37d1bbf4-image__3dd3f6883f_final_ppt_sync.png)

![NEET 2018 Chemistry, Alcohols Phenols and Ethers — solution figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/616059730283de43c87e3e22/Chemistry/images/Alcohols_Phenols_and_Ethers/66bcbfb1ae81d148616b235a/solution_1__q_66bcbfb1ae81d148616b235a__cdn-question-pool.getmarks.app__1f4f2102-5497-443a-bf1e-3886ddd36198-image__b0f6fc38e2_final_ppt_sync.png) The Reimer Tiemann reaction is an organic chemical reaction where phenol is converted into an ortho hydroxy benzaldehyde using chloroform, a base, and acid workup. This results in a nucleophilic attack on the dichlorocarbene, forming an intermediate dichloromethyl substituted phenol.

NEET UG 2018 — Chemistry Organic Chemistry

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In the reaction, the electrophile involved is

NEET 2018 Chemistry, Alcohols Phenols and Ethers — question figure

Official previous-year question

Held on 30 Apr 2018 · Verified 9 Jul 2026.

Options

A
Dichloromethyl anion $(\overset{\circleddash }{C}{\mathrm{HCl}}_{2})$
B
Formyl cation $(\overset{\oplus }{C}\mathrm{HO})$
C
Dichloromethyl cation $(\overset{\oplus }{C}{\mathrm{HCl}}_{2})$
D
Dichlorocarbene $(:{\mathrm{CCl}}_{2})$

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NEET UG 2018 — Chemistry Organic Chemistry

2018mcqeasy

In the reaction, the electrophile involved is

NEET 2018 Chemistry, Alcohols Phenols and Ethers — question figure

Official previous-year question

Held on 30 Apr 2018 · Verified 9 Jul 2026.

Options

A
Dichloromethyl anion $(\overset{\circleddash }{C}{\mathrm{HCl}}_{2})$
B
Formyl cation $(\overset{\oplus }{C}\mathrm{HO})$
C
Dichloromethyl cation $(\overset{\oplus }{C}{\mathrm{HCl}}_{2})$
D
Dichlorocarbene $(:{\mathrm{CCl}}_{2})$

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NEET UG Organic Chemistry in other years

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NEET UG 2018 — Chemistry Organic Chemistry

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NEET UG 2018 — Chemistry Organic Chemistry

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Solution

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NEET UG Organic Chemistry in other years

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Physical Chemistry

Inorganic Chemistry

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