Rajasthan Test & Research Centre Chemist Interview Questions and Answers

pH is a measure of acidity or alkalinity of a solution. It is calculated using the formula pH = -log[H+].

• pH ranges from 0 (most acidic) to 14 (most alkaline)

• Neutral pH is 7

• pH of 0.01N NaOH can be calculated using the formula pH = -log(0.01) = 2

UV-FT-IR, NMR principles involve interaction of molecules with electromagnetic radiation to provide structural information.

• UV-FT-IR spectroscopy involves measuring the absorption of ultraviolet and infrared radiation by molecules to determine functional groups and chemical structure.

• NMR spectroscopy utilizes the magnetic properties of certain atomic nuclei to provide information about the molecular structure and enviro...read more