323321
Number of non-bonding electrons on carbon in the intermediate formed in Reimer-Tiemann reaction is
1 1
2 2
3 3
4 0
Explanation:
Intermediate formed in Riemer-Tiemann reaction is : \(\mathrm{CCl}_{2}\). It has 2 non-bonding electrons.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323322
The reaction which involves dichlorocarbene as an electrophile is
1 Reimer-Tiemann reaction
2 Kolbe's reaction
3 Friedel-Crafts' acylation
4 Fittig, s reaction.
Explanation:
Dichloro carbene formed as an intermediate in Riemer- Tiemann reaction Mechanism: (i) Generarion of electrophile \({\text{H}}{{\text{O}}^ - } + {\text{CHC}}{{\text{l}}_3} \rightleftarrows {{\text{H}}_2}{\text{O}} + {\text{CCl}}_3^ - \to :\mathop {{\text{CC}}{{\text{l}}_2}}\limits_{{\text{Dichloro}}{\mkern 1mu} {\mkern 1mu} {\text{carbone}}\left( {{{\text{E}}^*}} \right)} + {\text{C}}{{\text{l}}^ - }\) (ii) Electrophilic substitution
KCET - 2016
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323323 \({\text{Y}}\) (Major product). \({\text{Y}}\) in the above reaction is
1 Cumene
2 Picric acid
3 Salicylaldehyde
4 Aspirin
Explanation:
KCET - 2023
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323324
Phenol on heating with \(\mathrm{CHCl}_{3}\) and \(\mathrm{NaOH}\) gives salicylaldehyde. The reaction is called :
1 Reimer - Tiemann reaction
2 Claisen reaction
3 Cannizzaro's reaction
4 Hell - Volhard - Zelinsky reaction
Explanation:
The above sequence reaction is Reimer-Tiemann reaction.
JEE - 2013
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323325
What is the product obtained in Reimer-Tiemann reaction?
1 Salicylaldehyde
2 2,4,6-Trinitrophenol
3 Salicylic acid
4 Aniline
Explanation:
On treating phenol with chloroform in the presence of sodium hydroxide, salicylaldehyde is produced. This reaction is known as Reimer Tiemann reaction.
323321
Number of non-bonding electrons on carbon in the intermediate formed in Reimer-Tiemann reaction is
1 1
2 2
3 3
4 0
Explanation:
Intermediate formed in Riemer-Tiemann reaction is : \(\mathrm{CCl}_{2}\). It has 2 non-bonding electrons.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323322
The reaction which involves dichlorocarbene as an electrophile is
1 Reimer-Tiemann reaction
2 Kolbe's reaction
3 Friedel-Crafts' acylation
4 Fittig, s reaction.
Explanation:
Dichloro carbene formed as an intermediate in Riemer- Tiemann reaction Mechanism: (i) Generarion of electrophile \({\text{H}}{{\text{O}}^ - } + {\text{CHC}}{{\text{l}}_3} \rightleftarrows {{\text{H}}_2}{\text{O}} + {\text{CCl}}_3^ - \to :\mathop {{\text{CC}}{{\text{l}}_2}}\limits_{{\text{Dichloro}}{\mkern 1mu} {\mkern 1mu} {\text{carbone}}\left( {{{\text{E}}^*}} \right)} + {\text{C}}{{\text{l}}^ - }\) (ii) Electrophilic substitution
KCET - 2016
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323323 \({\text{Y}}\) (Major product). \({\text{Y}}\) in the above reaction is
1 Cumene
2 Picric acid
3 Salicylaldehyde
4 Aspirin
Explanation:
KCET - 2023
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323324
Phenol on heating with \(\mathrm{CHCl}_{3}\) and \(\mathrm{NaOH}\) gives salicylaldehyde. The reaction is called :
1 Reimer - Tiemann reaction
2 Claisen reaction
3 Cannizzaro's reaction
4 Hell - Volhard - Zelinsky reaction
Explanation:
The above sequence reaction is Reimer-Tiemann reaction.
JEE - 2013
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323325
What is the product obtained in Reimer-Tiemann reaction?
1 Salicylaldehyde
2 2,4,6-Trinitrophenol
3 Salicylic acid
4 Aniline
Explanation:
On treating phenol with chloroform in the presence of sodium hydroxide, salicylaldehyde is produced. This reaction is known as Reimer Tiemann reaction.
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323321
Number of non-bonding electrons on carbon in the intermediate formed in Reimer-Tiemann reaction is
1 1
2 2
3 3
4 0
Explanation:
Intermediate formed in Riemer-Tiemann reaction is : \(\mathrm{CCl}_{2}\). It has 2 non-bonding electrons.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323322
The reaction which involves dichlorocarbene as an electrophile is
1 Reimer-Tiemann reaction
2 Kolbe's reaction
3 Friedel-Crafts' acylation
4 Fittig, s reaction.
Explanation:
Dichloro carbene formed as an intermediate in Riemer- Tiemann reaction Mechanism: (i) Generarion of electrophile \({\text{H}}{{\text{O}}^ - } + {\text{CHC}}{{\text{l}}_3} \rightleftarrows {{\text{H}}_2}{\text{O}} + {\text{CCl}}_3^ - \to :\mathop {{\text{CC}}{{\text{l}}_2}}\limits_{{\text{Dichloro}}{\mkern 1mu} {\mkern 1mu} {\text{carbone}}\left( {{{\text{E}}^*}} \right)} + {\text{C}}{{\text{l}}^ - }\) (ii) Electrophilic substitution
KCET - 2016
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323323 \({\text{Y}}\) (Major product). \({\text{Y}}\) in the above reaction is
1 Cumene
2 Picric acid
3 Salicylaldehyde
4 Aspirin
Explanation:
KCET - 2023
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323324
Phenol on heating with \(\mathrm{CHCl}_{3}\) and \(\mathrm{NaOH}\) gives salicylaldehyde. The reaction is called :
1 Reimer - Tiemann reaction
2 Claisen reaction
3 Cannizzaro's reaction
4 Hell - Volhard - Zelinsky reaction
Explanation:
The above sequence reaction is Reimer-Tiemann reaction.
JEE - 2013
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323325
What is the product obtained in Reimer-Tiemann reaction?
1 Salicylaldehyde
2 2,4,6-Trinitrophenol
3 Salicylic acid
4 Aniline
Explanation:
On treating phenol with chloroform in the presence of sodium hydroxide, salicylaldehyde is produced. This reaction is known as Reimer Tiemann reaction.
323321
Number of non-bonding electrons on carbon in the intermediate formed in Reimer-Tiemann reaction is
1 1
2 2
3 3
4 0
Explanation:
Intermediate formed in Riemer-Tiemann reaction is : \(\mathrm{CCl}_{2}\). It has 2 non-bonding electrons.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323322
The reaction which involves dichlorocarbene as an electrophile is
1 Reimer-Tiemann reaction
2 Kolbe's reaction
3 Friedel-Crafts' acylation
4 Fittig, s reaction.
Explanation:
Dichloro carbene formed as an intermediate in Riemer- Tiemann reaction Mechanism: (i) Generarion of electrophile \({\text{H}}{{\text{O}}^ - } + {\text{CHC}}{{\text{l}}_3} \rightleftarrows {{\text{H}}_2}{\text{O}} + {\text{CCl}}_3^ - \to :\mathop {{\text{CC}}{{\text{l}}_2}}\limits_{{\text{Dichloro}}{\mkern 1mu} {\mkern 1mu} {\text{carbone}}\left( {{{\text{E}}^*}} \right)} + {\text{C}}{{\text{l}}^ - }\) (ii) Electrophilic substitution
KCET - 2016
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323323 \({\text{Y}}\) (Major product). \({\text{Y}}\) in the above reaction is
1 Cumene
2 Picric acid
3 Salicylaldehyde
4 Aspirin
Explanation:
KCET - 2023
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323324
Phenol on heating with \(\mathrm{CHCl}_{3}\) and \(\mathrm{NaOH}\) gives salicylaldehyde. The reaction is called :
1 Reimer - Tiemann reaction
2 Claisen reaction
3 Cannizzaro's reaction
4 Hell - Volhard - Zelinsky reaction
Explanation:
The above sequence reaction is Reimer-Tiemann reaction.
JEE - 2013
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323325
What is the product obtained in Reimer-Tiemann reaction?
1 Salicylaldehyde
2 2,4,6-Trinitrophenol
3 Salicylic acid
4 Aniline
Explanation:
On treating phenol with chloroform in the presence of sodium hydroxide, salicylaldehyde is produced. This reaction is known as Reimer Tiemann reaction.
323321
Number of non-bonding electrons on carbon in the intermediate formed in Reimer-Tiemann reaction is
1 1
2 2
3 3
4 0
Explanation:
Intermediate formed in Riemer-Tiemann reaction is : \(\mathrm{CCl}_{2}\). It has 2 non-bonding electrons.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323322
The reaction which involves dichlorocarbene as an electrophile is
1 Reimer-Tiemann reaction
2 Kolbe's reaction
3 Friedel-Crafts' acylation
4 Fittig, s reaction.
Explanation:
Dichloro carbene formed as an intermediate in Riemer- Tiemann reaction Mechanism: (i) Generarion of electrophile \({\text{H}}{{\text{O}}^ - } + {\text{CHC}}{{\text{l}}_3} \rightleftarrows {{\text{H}}_2}{\text{O}} + {\text{CCl}}_3^ - \to :\mathop {{\text{CC}}{{\text{l}}_2}}\limits_{{\text{Dichloro}}{\mkern 1mu} {\mkern 1mu} {\text{carbone}}\left( {{{\text{E}}^*}} \right)} + {\text{C}}{{\text{l}}^ - }\) (ii) Electrophilic substitution
KCET - 2016
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323323 \({\text{Y}}\) (Major product). \({\text{Y}}\) in the above reaction is
1 Cumene
2 Picric acid
3 Salicylaldehyde
4 Aspirin
Explanation:
KCET - 2023
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323324
Phenol on heating with \(\mathrm{CHCl}_{3}\) and \(\mathrm{NaOH}\) gives salicylaldehyde. The reaction is called :
1 Reimer - Tiemann reaction
2 Claisen reaction
3 Cannizzaro's reaction
4 Hell - Volhard - Zelinsky reaction
Explanation:
The above sequence reaction is Reimer-Tiemann reaction.
JEE - 2013
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323325
What is the product obtained in Reimer-Tiemann reaction?
1 Salicylaldehyde
2 2,4,6-Trinitrophenol
3 Salicylic acid
4 Aniline
Explanation:
On treating phenol with chloroform in the presence of sodium hydroxide, salicylaldehyde is produced. This reaction is known as Reimer Tiemann reaction.
