Iodoform can be prepared from all, except

• propan-2-ol

• butan-2-one

• propan-1-ol

• acetophenone

Identify Q in the following sequence of reaction

Which of the following reagent cannot be used to oxidise primary alcohols to aldehydes?

• Pyridinium chlorochromate

• KMnO₄ in acidic medium

• CrO₃ in anhydrous medium

• Heating in presence of Cu at 573K

The product formed during the following reaction are

Reduction of ketones cannot be carried out with which of the following reagents?

• Sodium borohydride or lithium aluminium hydride

• Zinc amalgam and conc.HCl

• Hydrazine and KOH in ethylene glycol

• Hydrogen in presence of palladium in barium sulphate and quinoline

Toluene reacts with halogen in presence of iron (III) chloride giving ortho and para halo compounds. The reaction is

• nucleophilic substitution reaction

• free radical addition reaction

• electrophilic elimination reaction

• electrophilic substitution reaction

Lower members of aliphatic carboxylic acid are soluble in water. This is due to

• formation of hydrogen bonds with water

• due to london forces

• water is non electrolyte

• Van der- Waal's interaction with water molecules.

328.

The most appropriate reagent to distinguish between acetaldehyde and formaldehyde is :

• Fehling's solution

• Tollen's reagent

• Schiffs reagent

• iodine in presence of base

The conversion of acetophenone to acetanilide is best accomplished by using :

• Beckmann rearrangement

• Curtius rearrangement

• Lassen rearrangement

• Hofmann rearrangement

Cannizzaro's reaction is an example of auto oxidation

• It is a reaction answered by only aldehydes containing a hydrogen

• It is a reaction answered only by aromatic aldehydes.

• it is a reaction answered by all aldehydes

• it is a reaction answered by all aldehydes