Advertisements
Advertisements
प्रश्न
Addition of sodium bisulphite to ethanol is ____________ type of reaction.
पर्याय
electrophilic addition
electrophilic substitution
nucleophilic addition
nucleophilic substitution
Advertisements
उत्तर
Addition of sodium bisulphite to ethanol is nucleophilic addition type of reaction.
APPEARS IN
संबंधित प्रश्न
Answer in brief.
Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Write a note on Stephen reaction.
Answer in brief.
Write reaction showing conversion of Acetaldehyde into acetaldehyde dimethyl acetal.
The following compounds will give positive Fehling’s test.
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
Benzaldehyde gives all tests positive EXCEPT ____________.
Identify A in the following reaction.
\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]
Which of the following does not give yellow solid on treatment with sodium hypoiodlte?
The compound which does NOT undergo haloform reaction is ____________.
The number of α-H atoms in butanal is ____________.
Which of the following reagents is used to avoid further oxidation of aldehydes?
Identify the product Y in the following series of reactions.
\[\ce{4-Nitrotoluene ->[(CH3CO)2O/CrO3][273 - 278 K] X ->[H3O^+][\Delta] Y}\]
Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.
Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.
How will you convert benzaldehyde into the following compound?
Benzophenone
How will you convert benzaldehyde into the following compound?
Benzoic acid
What is the action of HCN on 2, 4-dichlorobenzaldehyde?
How will you prepare lactic acid from ethanol?
How will you prepare acetophenone from acetyl chloride?
Which of the following compound will show a positive silver mirror test?
Which of the following compounds does not undergo a haloform reaction?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Give two examples which undergo Wolf-Kishner reduction.
How are the following compound obtained from alkyne?
Acetaldehyde
Write a note on Clemmensen reduction.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Which from following tests confirms presence of aldehydic group in glucose?
