Which of the following is incorrect regarding Kolbe’s reaction?(a) The final product is Salicylic acid(b) CO2 acts as an electrophile(c) Acidification of phenol leads to formation of main product(d) Phenoxide ion undergoes electrophilic attackThis question was addressed to me in my homework.My question is based upon Alcohols and Phenols topic in section Alcohols, Phenols and Ethers of Chemistry – Class 12

Which of the following is incorrect regarding Kolbe’s reaction?(a) T

1.	Which of the following is incorrect regarding Kolbe’s reaction?(a) The final product is Salicylic acid(b) CO2 acts as an electrophile(c) Acidification of phenol leads to formation of main product(d) Phenoxide ion undergoes electrophilic attackThis question was addressed to me in my homework.My question is based upon Alcohols and Phenols topic in section Alcohols, Phenols and Ethers of Chemistry – Class 12
Answer» Right choice is (c) ACIDIFICATION of phenol leads to FORMATION of main product Explanation: The first step of KOLBE’s reaction is the formation of sodium phenoxide, which is formed by TREATING phenol with NaOH. This phenoxide undergoes substitution by a weak electrophile, CO2, to form the main product, i.e., 2-Hydroxybenzoic acid or salicylic acid.

Discussion

No Comment Found

Related InterviewSolutions

What is the major product formed when ethanol is dehydrated with concentrated H2SO4 at 413K?(a) Ethene(b) Methoxymethane(c) Methoxyethane(d) EthoxyethaneThe question was asked during an interview for a job.Query is from Ethers topic in portion Alcohols, Phenols and Ethers of Chemistry – Class 12
Which of the following compounds is not used in the denaturation of alcohol?(a) Copper sulphate(b) Methyl alcohol(c) Pyridine(d) Ethyl alcoholThis question was posed to me during a job interview.This is a very interesting question from Commercially Important Alcohols topic in division Alcohols, Phenols and Ethers of Chemistry – Class 12
Which of the following is not a use of methanol?(a) Solvent for paints(b) Manufacturing of formaldehyde(c) Production of alcoholic drinks(d) Antifreeze in car radiatorsThe question was posed to me in class test.Question is taken from Commercially Important Alcohols in division Alcohols, Phenols and Ethers of Chemistry – Class 12
In the presence of air, phenols slowly start to form dark coloured mixtures.(a) True(b) FalseThe question was asked in semester exam.Origin of the question is Alcohols and Phenols in section Alcohols, Phenols and Ethers of Chemistry – Class 12
The reaction between tert-Butyl chloride and sodium ethoxide gives _______(a) tert-Butyl ethyl ether(b) tert-Butyl methyl ether(c) 2-Methylprop-1-ene(d) buteneThis question was addressed to me by my school principal while I was bunking the class.Asked question is from Ethers topic in division Alcohols, Phenols and Ethers of Chemistry – Class 12
What product(s) are formed when the shown ether is heated with hydrogen iodide?(a) (C6H5)CH2I and (C6H5)OH(b) (C6H5)CH2OH and (C6H5)I(c) (C6H5)CH2OH and (C6H5)CH2I(d) (C6H5)OH and (C6H5)IThe question was posed to me in a job interview.I'm obligated to ask this question of Ethers topic in division Alcohols, Phenols and Ethers of Chemistry – Class 12
Identify the major product of Friedel-Crafts acylation of anisole with ethanoyl chloride?(a) 2-Methoxytoluene(b) 4-Methoxytoluene(c) 2-Methoxyacetophenone(d) 4-MethoxyacetophenoneI got this question in semester exam.This key question is from Ethers in portion Alcohols, Phenols and Ethers of Chemistry – Class 12
The boiling point of ethers is ______ the boiling point of alcohols of comparable molecular mass.(a) lower than(b) similar to(c) little higher than(d) much higher thanThe question was asked by my school principal while I was bunking the class.Query is from Ethers topic in portion Alcohols, Phenols and Ethers of Chemistry – Class 12
Which alcohol is known as a wood spirit?(a) Methanol(b) Ethanol(c) Propanol(d) ButanolI got this question in final exam.This intriguing question comes from Commercially Important Alcohols in division Alcohols, Phenols and Ethers of Chemistry – Class 12
Lucas test was conducted on three compounds A, B and C. Compounds A and B showed turbidity at room temperature, but compound C became turbid only after heating. Which of the compounds has a tertiary structure?(a) A(b) A and B(c) C(d) Cannot be determinedThis question was addressed to me by my school teacher while I was bunking the class.This interesting question is from Alcohols and Phenols in chapter Alcohols, Phenols and Ethers of Chemistry – Class 12

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment