Question

please answer my question and I will mark it as the brainliest please if possible make this in your notebook and circle there it will help me and clear it more please​

Answer 1

Answer:

1. wood

2. p.v.c.

3. -------..

4.-------...

5. brittle

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Answer 2

Explanation:

ANSWER:-

1. Nylon :- It is odd one oyt because wood or silk or cotton is obtained from nature but, Nylon is man made
2. Teflon:- It is odd one out because teflon is used to make hard coatings in industries to prevent reaction of Acids with any substance. Others are also made of plastics but comparitively fragile
3. Plastic:- It is again odd one out because actually plastic is obtained by refining crude oil by Fractional Distillation and other are obtained in nature directly, even diamonds are found from Coal. Plastic is generally considered man made.
4. Copper :- According to reactivity series, Copper comes below hydrogen. Sodium comes at first followed by Magnesium , Zinc and Iron.
5. Metal :- Because Dull, Brittle , Non conducting are generally the properties of Non metals.

Fractional Distillation :-

Crude Oil :-

In this first the crude oil derived beneath the sea bed is evaporated and converted into fractions. From these fractions we get Petrol, diesel, Parrafin Wax etc. We also derive plastic originally then mostly it is modified. Hence plastic is considered Man Made.

Bakelite:-

This is a type.of plastic used to make insulation or insulating things such as Handles of Pressure cooker so that the user may not feel the heat while cooking.

Non Metals:-

Characteristics:-

• Non conducting
• Brittle
• Non sonorous
• Low Tensile Strength
• Non heat conducting
• Used for insulation.

Exceptions:-

• Graphite is the non metal which conducts electricity
• Diamond is the hardest non metal ever known.