Distillation column

Porcelain pieces are put into the distillation flask to avoid ____________

• Overheating

• Uniform boiling

• Bumping of the solution

• None of the mentioned options

The process of heating a liquid mixture to form vapours and then cooling the vapours to get pure component is called ____________

• Crystallisation

• Distillation

• Chromatography

• Sublimation

Which of the following is not separated through distillation process?

• Acetone and water

• Aniline and chloroform

• Impurities in Sea water

• Milk and water

The distilled water is collected in ____________

• Receiver

• Adapter

• Condenser

• Round bottom flask

The process of distillation is used for the liquids having ____________

• Sufficient difference in their boiling point

• Sufficient difference in their melting point

• Sufficient difference in their solubility

• None of the mentioned

The residue in the round bottom flask is ____________

• Volatile

• Non volatile

• None of the mentioned

• Volatile & Non volatile

Automotive gasoline is derived from petroleum via

• Fractional distillation unit

• Reforming and cracking

• Both A and B

The term “refinery” represents only distillation of petroleum and fractions.

• True

• False

From the full boiling range naphtha obtained from the atmospheric distillation unit (ADU), we extract butane and lighter gases.

• True

• False

In refineries, CDU stands for

• Compressed distillation unit

• Central distillation unit

• Crude distillation unit