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Question
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Tollen’s reagent
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Solution
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Answer in brief.
What is the action of hydrazine on cyclopentanone in presence of KOH in ethylene glycol?
The following compounds will give positive Fehling’s test.
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
Identify the INCORRECT reaction.
Identify A in the following reaction.
\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]
Compounds of general formula, are called ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR''}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{R'}\phantom{...}\ce{OR''}\phantom{} \end{array}\]
Acetone on Clemmensen reduction gives ____________.
Identify the product Y in the following series of reactions.
\[\ce{4-Nitrotoluene ->[(CH3CO)2O/CrO3][273 - 278 K] X ->[H3O^+][\Delta] Y}\]
Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:
\[\ce{CH2 = CH2 ->[i) O3][ii) Zn/H2O] X ->[NH3] Y}\] ‘Y’ is:
Predict the product Z in the following series of reactions.
\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]
Which of the following represents the correct order of acidity in the given compounds.
\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:
Identify the product formed in the reaction.
Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (−CHO) group is meta directing.
In which of the following reactions new carbon-carbon bond is not formed?
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 ethanal?
How is the following conversion effected phenyl methanal into benzoic acid?
Identify A, B and C.
Which of the following compounds is most reactive towards nucleophilic addition reactions?
How acetone is converted into propane.
Which of the following reaction does not involve either oxidation or reduction?
Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with zinc-amalgam and cone. HCI.
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
Which from following tests confirms presence of aldehydic group in glucose?
