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Which of the following statement is true...

Which of the following statement is true?

A

Melamine formaldehyde is used for making electrical switches.

B

Plasticizers are substances which are used to make plastic soft.

C

Nylon-6 is a biodegradable semi synthetic polymer.

D

In the manufacture of ebonite, 5% of sulphur is used as a cross-linking agent.

Text Solution

Verified by Experts

The correct Answer is:
B
Plastics are little brittle and hard in nature. For this purpose, a solvent is added which decreases the viscosity and brittleness of the material. That solvent is called plasticizers. Plasticizers soften the PVC to make it flexible and bendable.
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NTA MOCK TESTS-POLYMERS TEST-1-SINGLE CHOICE
  1. Identify the mismatch in the following:

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  2. A polymer, which finds use in baby feeding bottles:

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  3. Which one of the following is used to make aircraft windows?

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  4. Which of the following statement is true?

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  5. In the above equations, which of the following are correct? (a) X an...

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  6. Which one of the following is not correctly matched?

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  7. In the above equations, X and Y can be, (a) X = COOCH(3), Y = H(2)/ ...

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  8. Compounds (C) and (D) are :

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  9. Which one of the following is used to make lenses?

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  10. Bakelite is obtained from phenol by reacting with

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  11. Among (a) Proteins (b) Starch (c) Nucleic acid Which of the...

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  12. A type of polymer is generally formed from bifunctional and trifunctio...

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  13. Which of the following is not a semi synthetic polymer?

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  14. Which of the following are characteristics of thermosetting polymers? ...

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  15. The plastics that are hard, become soft and readily workable by additi...

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  16. The most suitable method for determination of the molecular mass of po...

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  17. Which of the following properties do belong to polymers: (a) Does no...

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  18. Thermosetting polymers: (a) are formed by condensation reaction. ...

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  19. The thermosetting plastic among the following is:

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  20. Which of the following properties are associated with thermoplastics? ...

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