The Aldol Addition
Trending Questions
Q. 
(X) in the above reaction is :
(X) in the above reaction is :
- Br−CH2−COOH
- CH3COOH
- (CH3CO)2O
- CHO−COOH
Q.
An organic compound C3H6O does not give a precipitate with 2, 4‑Dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be:
- CH2=CH-CH2OH
- CH3CH2CHO
- CH2=CH-O-CH3
- CH3COCH3
Q. For the reaction given below :
The compound which is not formed as a product in the reaction is a :
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The compound which is not formed as a product in the reaction is a :
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- Dicarboxylic acid
- Compound with both alcohol and acid functional groups
- Diol
- Monocarboxylic acid
Q. In the reaction,
C6H5CHO+(CH3CO)2OCH3COONa−−−−−−−−→180∘CX, 'X' is
C6H5CHO+(CH3CO)2OCH3COONa−−−−−−−−→180∘CX, 'X' is
- C6H5COOH
- C6H5CH3
- C6H5CH=CHCOOH
- C6H5COC6H5
Q.
Molecualr weight of phorone is equal to
3 x molecular weight of acetone - molecular weight of water
2 x molecular weight of acetone - molecular weight of water
3 x molecular weight of acetone -2 x molecular weight of water
2 x molecular weight of acetone - 2 x molecular weight of water
Q. Benzaldehyde undergoes aldol condensation in -
- acid medium
- alkaline medium
- neutral medium
- none of these
Q. Which of the following are examples of aldol condensation?
- 2CH3CHODil.NaOH−−−−−−→CH3CHOHCH2CHO
- 2CH3COCH3Dil.NaOH−−−−−−→(CH3)2C(HO)CH2COCH3
- 2HCHODil.NaOH−−−−−−→CH3OH
- C6H5CHO+HCHODil.NaOH−−−−−−→C6H5CH2OH
Q. Which of the following will undergo aldol condensation?
- Acetaldehyde
- Propanaldehyde
- Benzaldehyde
- Trideutereo acetaldehyde
Q.
Aldol condensation will not be observed in
Chloral
Phenyl acetaldehyde
Hexanal
Ethanol
Q. In the reaction sequence
2 CH3CHOOH⊖−−−→A△−→B; the product B is:
2 CH3CHOOH⊖−−−→A△−→B; the product B is:
- CH3−CH2−CH2−CH2−OH
- CH3−O||C−CH3
- CH3−CH2−CH2−CH3
- CH3−CH=CH−CHO
