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Give two reactions in which aliphatic al...

Give two reactions in which aliphatic aldehydes differ from aromatic aldehdyes?

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To answer the question about how aliphatic aldehydes differ from aromatic aldehydes in two specific reactions, we can consider the following: ### Step-by-Step Solution: 1. **Tollens' Test:** - **Aliphatic Aldehyde Reaction:** When an aliphatic aldehyde, such as acetaldehyde (CH₃CHO), is treated with Tollens' reagent (ammoniacal silver nitrate), it reduces the silver ions (Ag⁺) to metallic silver, resulting in a silver mirror on the test tube. - **Aromatic Aldehyde Reaction:** In contrast, when an aromatic aldehyde like benzaldehyde (C₆H₅CHO) is treated with Tollens' reagent, it also gives a positive result, as both types of aldehydes can reduce silver ions. ...
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Explain why Tollens' reagent reduces both aliphatic and aromatic aldehydes but Fehling's solutio reduces only the aliphatic aldehydes.

Give the structure and IUPAC name of an aliphatic aldehyde having five carbon atoms which undergoes Cannizzaro's reaction

Knowledge Check

  • Assertion:-Aliphatic aldehyde can be diffrentiate from aromatic aldehyde by Fehling solution. Reason:- This is because aliphatic aldehyde oxidises fehling solution but aromatic aldehyde donot.

    A
    If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.
    B
    If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion `&` Reason are False.

  • A Wittig reaction with an aldehyde gives

    A
    Ketone compound
    B
    A long chain fatty acid
    C
    Olefin compound
    D
    Epoxide

  • The reaction involving condensation of acetic anhydride with a n aromatic aldehyde by a carboxylate ion is an exaple of :

    A
    aldol condensation
    B
    benzoin condensation
    C
    Perkin's reaction
    D
    Wurtz reaction

    • Similar Questions

    Explore conceptually related problems

    The IUPAC names of open chain aliphatic aldehdes and ketones are derived from the names of the corresponding alkanes by replacing the ending -e with -al and - one respectively. In case of aldehydes the longest carbon chain is numbered starting from the carbon of the aldehyde group while in case of ketones the numbering begins from the the end nearer to the carbonyl group. The substituents are prefixed in alphabetical order along with numberals indicating their positions one . when the aldehyde group is attached to a ring, the suffix carbaldehyde is added after the full name of the cycloalkane. The numbering of the ring carbon atoms start from the carbon atom attached to the aldehyde group. The name of the simplest aromatic aldehyde carrying the aldehyde group on a benzene ring is benzenenecarbaldehyde. However, the common name benzaldehyde is also accepted by IUPAC. Other aromatic aldehydes are hence named as substituted benzaldehydes. How do we name aromatic aldehydes ?

    Assertion : Aromatic aldehydes and formadehyde undergo Cannizzaro reaction Reason : Aromatic aldehydes are almost reactive a formaldehyde.

    Assertion: Aromatic aldehydes can be distinguished from aliphatic aldehydes by fehling's solution Reason : Fehing's solution is an alkaline solution of CuSO_(4) containing Rochelle salt.

    Assertion: Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction. Reason: Aromatic aldehydes are almost as reactive as formaldehyde.

    Statement 1: Aromatic aldehydes can be distinguished from aliphatic aldehydes by Fehling solution. Statement 2: Fehling solution in an alkaline solution of CuSO_(4) containing Rochelle salt.

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