Question

A filler is a substance added to make a material less expensive, or for:

• A. Changing its acidity
• B. Changing its physical properties
• C. Reducing its chemical activity
• D. Increasing its anti-rusting power

Answer 1

The correct option is B Changing its physical properties

A filter is a substance added to make a material less expensive or for changing its physical properties.

Filter are added to alter and improve the physical and mechanical properties of plastics it does not affect the structure arrangement of substance.