Aldol Condensation (Including Cross Aldol)

JEE Main Chemistry · Aldehydes and Ketones · 16 questions, latest first

• ' x ' is the product which is obtained from benzene by reacting it with carbon monoxide and hydrogen chloride in the presence of…20268 April, Shift 2 · Q72
• ' x ' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute acidic…20266 April, Shift 2 · Q64
• " P " is a hydrocarbon of molecular formula:- C_8 H_14. On ozonolysis, " P " forms "Q". "Q" on treatment with alkali under reflux…20265 April, Shift 1 · Q64
• Given below are two statements: Statement I: Cross aldol condensation between two different aldehydes will always produce four…202624 January, Shift 2 · Q64
• Consider the following reaction of benzene. In compound (Q), the percentage of oxygen is ____ \%. (Nearest integer)202623 January, Shift 2 · Q72
• ' x ' is the product which is obtained from propanenitrile and stannous chloride in the presence of hydrochloric acid followed by…202623 January, Shift 1 · Q67
• When undergoes intramolecular aldol condensation, the major product formed is:20258 April, Shift 2 · Q68
• Aldol condensation is a popular and classical method to prepare α, β -unsaturated carbonyl compounds. This reaction can be both…20254 April, Shift 1 · Q67
• Given below are two statements: Statement (I): Vanillin will react with NaOH and also with Tollen's reagent. Statement (II):…20252 April, Shift 1 · Q68
• Aman has been asked to synthesise the molecule (x). He thought of preparing the molecule using an aldol condensation reaction. He…202524 January, Shift 1 · Q67
• Two moles of benzaldehyde and one mole of acetone under alkaline conditions using aqueous NaOH after heating gives x as the major…20248 April, Shift 2 · Q86
• Given below are two statements: Statements I: Acidity of α -hydrogens of aldehydes and ketones is responsible for Aldol reaction.…20244 April, Shift 1 · Q78
• A in the above reaction is:202312 April, Shift 1 · Q77
• Cyclohexylamine when treated with nitrous acid yields (P). On treating (P) with PCC results in (Q). When (Q) is heated with dil.…202331 January, Shift 2 · Q45
• Consider the following reaction Propanal + Methanal →[ (ii) Δ (iii) NaCN (iv) H_3 O^+] (i) dil. NaOH (C_5 H_8 O_3) Product B The…202331 January, Shift 1 · Q46
• Compound (X) undergoes following sequence of reactions to give the Lactone (Y). Compound (X) is202324 January, Shift 1 · Q47