Aldehydes and ketones undergo addition reaction followed by elimination of water with certain reagents. What happens when benzaldehyde is heated with zinc amalgam and conc. HCI?

Aldehydes and ketones undergo addition reaction followed by elimination of water with certain reagents. Give the structure and names of two such reagents.

Aldehydes and ketones undergo addition reaction followed by elimination of water with certain reagents. Write equation for the reaction of any one of them with propanone.

Aldehydes and ketones differ in their chemical reactions. How do they with the following.? Tollens's reagent

Treatment of a carbonyl compound with hydrazine produces hydrazone in presence of glycol as the solvent. Which of the following statements are correct about this reaction? The reaction involves nucleophilic addition followed by elimination of water Hydrazone is an intermediate in Wolff-Kishner reduction The reaction is carried out in freebly acidic medium 1, 2, and 3

What is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

Aldehydes, Ketones and Carboxylic acids are Carbonyl compounds.Write the reactions of carboxylic acid with the following reagents. (Write the chemical equations). Chlorine in presence of small amount of red phosphorous.

Carboxylic acid group does not give the usual addition and elimination reactions of aldehydes and ketones because

When a white crystalline compound 'X' is heated with K_(2)Cr_(2)O_(7) and concentrated H_(2)SO_(4) a red dish brown gas 'A' is evolved. On passing 'A' into caustic soda solution, a yellow coloured solution of 'B' is obtained. Neutralising the solution 'B' with acetic acid and on subsequent addition of lead acetate a yellow precipitate C is obtained. When 'X' is heated with NaOH a colourless gas is evolved and on passing this a gas into K_(2)HgI_(4) (Nessler's reagent) solution a reddish brown precipitate D is formed. Identify '(A), (B), (C), (D) and X. Write equations for the reactions involved.

Give reasons for the following observations. Aldehydes and ketones undergo nucleophilic addition reactions.