MCQs of Polymers

Showing 11 to 20 out of 168 Questions

11.

Which of the following two monomers are used in preparation of nylon-6,6 ?

(a)	Hexamethylene diamine and ethylene glycol
(b)	Adipic acid and hexamethylene diamine
(c)	Dimethyl terphthalate and ethylene glycol
(d)	Adipic acid and ethylene glycol

12.

_____ possesses biodegradable property

13.

Which choice is correct for synthetic polymer substance ?

14.

Which is the formula to find mass average molecular mass ?

(a)	$M_{w} = \frac{\underset{i = 1}{\sum^{\infty}} N_{i}^{2} . M_{i}}{\sum_{i = 1}^{\infty} N_{i} . M_{i}}$
(b)	$M_{w} = \frac{\underset{i = 1}{\sum^{\infty}} N_{i} M_{i}}{\sum_{i = 1}^{\infty} N_{i}}$
(c)	$M_{w} = \frac{\underset{i = 1}{\sum^{\infty}} N_{i} M_{i}}{\sum_{i = 1}^{\infty} N_{i}^{2}}$
(d)	$M_{w} = \frac{\underset{i = 1}{\sum^{\infty}} N_{i} M_{i}^{2}}{\sum_{i = 1}^{\infty} N_{i} M_{i}}$

15.

What can be obtained by ultracentrifuge method in polymer chemistry ?

16.

The number 'n' of repeating unit in polymer molecule is called _____

17.

Which functional group is present in polyester ?

18.

From the following _____ is the example of biopolymer.

19.

Which of the following polymers is obtained by condensation polymerization ?

20.

Light scattering method is used _____ .

(a)	to find concentration
(b)	to find molecular mass of polymer
(c)	to test elements
(d)	to find number of molecules

Showing 11 to 20 out of 168 Questions