Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
An acid that forms an anhydride (X) on heating and an acid imide (Y) on strong heating with ammonia is:
Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagent is:
CH_3CHO and C_6H_5CH_2CHO can be distinguished by:
The correct order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds will be: I, II, III
The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C), and formic acid (D) is:
The hydrolyzed product of an ester, when reduced by $LiAlH_4$, gives:
The number of structural isomers possible from the molecular formula $C_3H_9N$ is:
Given below are two statements: Statement I: A unit formed by the attachment of a base to 1' position of sugar is known as a nucleoside. Statement II: When nucleoside is linked to a phosphorous acid at 5' position of sugar moiety, we get nucleotide. In the light of the above statements choose the correct answer from the options given below:
Which of the following is the most reactive towards nucleophilic addition reaction?
The reactant 'A' in the below-mentioned reaction is:
When m-chlorobenzaldehyde is treated with 50% KOH solution, the product(s) obtained is (are):
In a set of the given reactions, acetic acid yielded a product C: $$CH_3COOH + PCl_5 \rightarrow A \xrightarrow[Anh. AlCl_3]{C_6H_6} B \xrightarrow[ether]{C_2H_5MgBr} C$$ Product C would be:
Half-life of a radioactive sample is 4 days. After 16 days what quantity of matter remains undecayed?
The correct IUPAC name of the following compound is:
Which of the following compounds has a higher basic character than aniline?
Match Column-I (Reaction) with Column-II (Product formed) and mark the appropriate choice: **Column-I (Reaction)** (a) Gabriel synthesis (b) Kolbe synthesis (c) Williamson synthesis (d) Etard reaction **Column-II (Product formed)** (i) Benzaldehyde (ii) Ethers (iii) Primary amines (iv) Salicylic acid
Given below are two statements: **Statement I:** Aldehydes and ketones having at least one $\alpha$-hydrogen undergo aldol condensation in the presence of dilute alkali as catalyst. **Statement II:** When aldol condensation is carried out between two different aldehydes, it is called cross aldol condensation. Ketones do not give this reaction. In light of the above statements, choose the most appropriate answer from the options given below:
Identify the product in the following reaction: [Reaction Scheme Missing]
The difference between amylose and amylopectin is:
Which structure(s) of proteins remains(s) intact during denaturation process?