Therefore, Benzaldehyde does NOT give Fehling’s test.
Advertisements
Advertisements
प्रश्न
Benzaldehyde does NOT show positive test with ______.
पर्याय
Schiff reagent
Tollens' reagent
Sodium bisulphite solution
Fehling solution
Advertisements
उत्तर
Benzaldehyde does NOT show positive test with Fehling solution.
Explanation:
Benzaldehyde is an aromatic aldehyde. Aromatic aldehydes do not reduce Fehling solution, so the test is negative. But they do give:
- Schiff test
- Tollens’ test
- Sodium bisulphite addition
APPEARS IN
संबंधित प्रश्न
Write reaction showing aldol condensation of cyclohexanone.
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Tollen’s reagent
Aldol condensation between which of the following compounds followed by dehydration gives 4-Methylpent-3-en-2-one?
Benzaldehyde gives all tests positive EXCEPT ____________.
Ethyl methyl ketone can be reduced to n-butane by which of the following reactions?
Identify the INCORRECT reaction.
Which of the following gives red precipitate with Fehling's solution?
Which of the following compounds does NOT undergo aldol condensation?
Compounds of general formula, are called ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR''}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{R'}\phantom{...}\ce{OR''}\phantom{} \end{array}\]
Which of the following does not give yellow solid on treatment with sodium hypoiodlte?
The number of α-H atoms in butanal is ____________.
The formation of cyanohydrin from acetone is an example of ____________.
\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:

‘B’ is:
Which one of the following reaction is an example of disproportionation reaction.
Identify X and Y.
\[\ce{CH3COCH2CH2COOC2H5 ->[CH3MgBr] X ->[H3O^+] Y}\]
Identify A, B and C.

How will you convert benzaldehyde into the following compound?
α-hydroxy phenyl acetic acid
What is the action of HCN on 2, 4-dichlorobenzaldehyde?
How will you prepare lactic acid from ethanol?
How will you prepare ethane from sodium acetate?
How will you prepare acetaldehyde from ethyne?
Aldehydes are readily oxidised to yield carboxylic acids but ketones are inert to oxidation. Which is the most likely explanation regarding this difference in reactivity?
How are the following compound obtained from alkyne?
Acetone
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of strong base KOH.
Identify B in the following reaction:
\[\begin{array}{cc}
\ce{O}\phantom{........}\\
||\phantom{........}\\
\ce{\underset{(Acetone)}{CH3 - C - CH3}->[CrO3] B}
\end{array}\]
Write reactions when phenol reacts with Dilute HNO3
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Which from following compounds does NOT undergo haloform reaction?


