Advertisements
Advertisements
Question
Choose the most correct option.
Benzaldehyde does NOT show positive test with ______.
Options
Schiff reagent
Tollens' reagent
Sodium bisulphite solution
Fehling solution
Solution
Benzaldehyde does NOT show positive test with Fehling solution.
APPEARS IN
RELATED QUESTIONS
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
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 ____________.
Which of the following is Schiff's reagent?
Identify the INCORRECT reaction.
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 represents the structure of isopropyl methyl ketone?
Which of the following does not give yellow solid on treatment with sodium hypoiodlte?
Which among the following compounds does NOT undergo aldol condensation?
Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.
Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.
‘B’ is:
In which of the following reactions new carbon-carbon bond is not formed?
Identify A, B, C and D.
\[\ce{ethanoic acid ->[SOCl2] A ->[Pd/BaSO4] B ->[NaOH] C ->[][\Delta] D}\]
How is the following conversion effected phenyl methanal into benzoic acid?
Complete the following reaction.
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]
How will you prepare malachite green from benzaldehyde?
How will you prepare cinnamic acid from benzaldehyde?
How will you prepare acetaldehyde from ethyne?
Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of ______.
Which of the following compounds will undergo self-aldol condensation in the presence of cold dilute alkali?
Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with zinc-amalgam and cone. HCI.
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of a slightly acidic medium.
What is the action of the following regent on propanal?
Sodium Bisulphite
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.
