Aldehydes, Ketones and Carboxylic Acids

In the carbonyl group, the carbon-oxygen double bond consists of three $\sigma$ bonds and one $\pi$ bond. What is the approximate bond angle around the carbon atom?

The common name for the simplest ketone, Propan-2-one, is:

Which of the following is the correct IUPAC name for the simplest aldehyde, $HCHO$?

Which reaction is used to prepare aldehydes from nitriles using stannous chloride and hydrochloric acid followed by hydrolysis?

The Etard reaction involves the oxidation of toluene to benzaldehyde using which specific reagent?

Hydration of ethyne ($CH \equiv CH$) in the presence of $H_2SO_4$ and $HgSO_4$ at $333\,K$ yields which of the following products?

Which of the following compounds will give a positive Iodoform test (yellow precipitate with $I_2$ and $NaOH$)?

Lower carboxylic acids are soluble in water primarily due to:

The reagent used to distinguish between aldehydes and ketones is:

The reaction of an aldehyde with one equivalent of a monohydric alcohol in the presence of dry hydrogen chloride gas yields:

Which of the following reagents is used to form a cyanohydrin from an aldehyde or ketone?

During the nucleophilic addition of a nucleophile ($Nu^-$) to a carbonyl group, what is the change in hybridization of the carbonyl carbon atom?

What is the effect of an electron-donating group (EDG) on the acidity of a carboxylic acid?

The correct increasing order of acidity for the following compounds is: (I) $CH_{3}CH_{2}COOH$, (II) $CH_{3}COOH$, (III) $HCOOH$.

Carboxylic acids are more acidic than phenols because: