Question

name the non metals which is used 1. to make electrodes to dry cells 2. to preserve food materils 3. in the vulcanisaiton of rubber

Answer 1

• Carbon is used to make electrodes in dry cells as it does not react to other metals.

• Nitrogen is used for quick freezing of foods

• In the vulcanisation of rubber sulphur element is used to accomplish the task. It plays an important role in making a string polymer of rubber.

Sulfur accelerates the whole process by many times.