Genesis Chemistry Faculty Interview Questions and Answers

EDTA is used in titration to chelate metal ions and prevent interference from other metal ions.

• EDTA forms stable complexes with metal ions, making it easier to determine the concentration of the metal ion being titrated.

• EDTA can be used to titrate a variety of metal ions, including calcium, magnesium, and zinc.

• EDTA is often used in complexometric titrations, where the goal is to determine the concentration of a metal i...read more

A buffer solution is a solution that resists changes in pH when small amounts of acid or base are added to it.

• Buffer solutions are made up of a weak acid and its conjugate base or a weak base and its conjugate acid.

• They are used in various chemical and biological processes to maintain a stable pH.

• Examples of buffer solutions include acetic acid/sodium acetate buffer and phosphate buffer.

• Buffer capacity is the amount of...read more

Packing efficiency is the ratio of the volume occupied by particles to the total volume of the container. Limiting reagent is the reactant that gets consumed first and limits the amount of product formed. Aspirin can be prepared from phenol by acetylation using acetic anhydride and a catalyst.

• Packing efficiency is important in determining the density of a material.

• Limiting reagent can be identified by calculating the a...read more

Sandmeyer's reaction is a chemical reaction used to convert an aryl diazonium salt to a halide, hydroxide, or cyano compound.

• Involves the replacement of the diazonium group (-N2+) with a halogen, hydroxyl, or cyano group.

• The reaction is carried out in the presence of a copper(I) salt and an acid.

• The reaction can be used to synthesize a variety of compounds such as chlorobenzene, bromobenzene, iodobenzene, phenol, and b...read more