Question

Classify the following substance according to their properties.

1. thermocol, rubber, plastic, paper​

Answer 1

Answer:

Thermocol:-It has low ther mal insulating material.

Rubber:-A rubber has tensile strength, tear resistance and specific gravity.

Plastic:-Plastics have weather and fire resistance properties.

Paper:-Paper has tear resisting amd moisture retention properties.

Explanation:

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Answer 2

Answer:

(a) Water:

• Water is a polar molecule.
• It has adhesive, cohesive and evaporating properties.

• It had high specific heat and surface tension.

(b) Thermocol:

• It has low thermal conductivity and is used as thermal insulating material.

(c) Rubber:

• A rubber has tensile strength, tear resistance and specific gravity.

(d) Plastic:

• Plastics have weather and fire resistance properties.

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