Which are used to kill bacteria that cause diseases and also to control their growth ?

Which is a thermoplastic?

To get purple coloured glass what metallic compound is used?

Pick out the odd one.

To control the setting time , which is added to the cement?

Antacids  are used to reduce

One important source of vitamin C is citrus fruit .Vitamin C is

The plastic which is coated on the uniforms of firemen to make them fire-resistant is

Which are used to reduce pain ?

A substance which has less elasticity is