Small scale evaporation is done in a

ANS:D - steam jacketed kettle

Small-scale evaporation is typically performed in a steam jacketed kettle. A steam jacketed kettle is a vessel that is equipped with a steam jacket surrounding its bottom and sides. Steam is introduced into the jacket to provide indirect heating to the contents of the kettle. This setup allows for controlled heating and evaporation of liquids, making it suitable for small-scale evaporation processes in industries such as food processing, pharmaceuticals, and laboratory applications. Therefore, the correct option is: steam jacketed kettle.