Advertisements
Advertisements
प्रश्न
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Write a note on Stephen reaction.
Write reaction showing aldol condensation of cyclohexanone.
Answer in brief.
Write reaction showing conversion of Acetaldehyde into acetaldehyde dimethyl acetal.
If acetaldehyde is treated with Fehling's solution, the change that occurs in the system is ____________.
Acetone reacts with iodine (I2) to form iodoform, in the presence of ____________.
Which of following is not a property of red phosphorus?
Which of the following compounds does NOT undergo aldol condensation?
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]
Reaction is called ____________.
An aldehyde or ketone reacts with hydrogen cyanide to form corresponding cyanohydrin derivatives. This reaction is an example of ____________.
Compounds of general formula, are called ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR'}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{H}\phantom{....}\ce{OR'}\phantom{} \end{array}\]
The number of α-H atoms in butanal is ____________.
Which of the following carbonyl compounds does NOT undergo aldol condensation?
The formation of cyanohydrin from acetone is an example of ____________.
\[\ce{CH2 = CH2 ->[i) O3][ii) Zn/H2O] X ->[NH3] Y}\] ‘Y’ is:
Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.
Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.
Which of the following represents the correct order of acidity in the given compounds.
In which of the following reactions new carbon-carbon bond is not formed?
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.
How is the following conversion effected propanal into butanone?
How is the following conversion effected phenyl methanal into benzoin?
Identify A, B and C.
How will you prepare ethyl acetate from methyl acetate?
How will you prepare cinnamic acid from benzaldehyde?
In the above reaction, product (B) is:
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
What is the action of hydrogen cyanide on the following?
Acetone
How will you prepare Acetic anhydride from acetic acid ?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare acetic anhydride from acetic acid?
