Tag: chemistry

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Multiple choice chemistry man made materials plastic waste thermocol ways to reduce non degradable garbage

Which of the following is used in automobile battery casings?

  1. HDPE

  2. PP

  3. PVC

  4. Polyester
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 The purpose of a battery casing is for enclosing and hermetically sealing a battery body which converts chemical energy into electrical energy in order to generate current to power an electronic device. 

Battery casing is manufactured in layers. The casing layers are developed from various raw materials and can include one or two, for example, polyethylene terephthalate layers, a polymer layer, and a polypropylene layer. 


Among the given option the correct answer is B.

Multiple choice chemistry man made materials plastic waste thermocol ways to reduce non degradable garbage

Which out of the following is used for making disposable cups?

  1. LDPE

  2. PS

  3. PP

  4. PVC
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
A paper cup is a disposable cup made out of paper and often lined or coated with plastic or wax to prevent liquid from leaking out or soaking through the paper. Disposable cups are made up of Polystyrene (PS).

The main advantages of polystyrene cups are-

They use fewer raw materials and their manufacturing process consumes less energy and produces less waste than that of paper cups.
 Polystyrene cups are also lighter than paper ones, which leads to lower transport costs.
Option B is correct.