19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following represents the correct order of the acidity in the given compounds?
The correct order for the acidic character of the following carboxylic acids is
Hydrogenation of benzoyl chloride in the presence of Pd-BaSO4 gives
Ethyl Acetate O (i)CH MgBr (excess) (ii) H -> P, the product will be (a) (b) (c) (d)
Benzoyl chloride is prepared from benzoic acid by
In the following sequence of reactions: KMnO SOCl H /Pd BaSO Toluene A B C, -> ->-> Carboxylic Acid and Its Derivatives the product C formed will be :
Acetamide is treated separately with the following reagents. Which one of these would give methyl amine?
Benzamide on treatment with POCl3 gives
In the given reaction, H O C H CO O I -> H O C H COOCOCH II -> Identify the product(s) formed in the given reaction. I II
Assertion : p–hydroxybenzoic acid has a lower boiling point than o–hydroxybenzoic acid. Reason : o–hydroxybenzoic acid has intramolecular hydrogen bonding.
Assertion : (CH3)3C–COOH does not give HVZ reaction. Reason : It does not have any -hydrogen
Assertion : Acetic acid does not give haloform reaction. Reason : Acetic acid has no -hydrogen.
Assertion:Formic acid reduces mercuric chloride. Reason: Formic acid is stronger than acetic acid.
Assertion : Acid catalysed hydrolysis of ester is reversible on the other hand base catalysed hydrolysis is irreversible. Reason : In acid catalysed ester hydrolysis carboxylic acid is formed on which nucleophile atta…
Ethyl isocyanide on hydrolysis in acidic medium generates
Here Z is (a)
Picric acid is (a) (b) (c) (d)
Structure of the compound whose IUPAC name is 3- ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is: (a) (b) (c) (d)
Trough which of the following reactions number of carbon atoms can be increased in the chain? (i) Grignard reaction (ii) Cannizzaro’s reaction (iii) Aldol condensation (iv) HVZ reaction Choose the correct option.
Sucrose when boiled with dil. HCl produce
Sucrose in water is dextrorotatory, []D = + 66.4° when boiled with dil. HCl, the solution becomes laevo-rotatory, []D = – 39.9°. In this process the sucrose breaks into
Glycolysis is
Glucose and mannose are
The beta and alpha glucose have different specific rotations. When either is dissolved in water, their rotation changes until the same fixed value results. This is called.
Methyl –D-glucoside and methyl –D- glucoside are