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Standard XIII

Chemistry

Molecular Weight of Polymers

Molecular mas...

Question

Molecular mass of polymer is

small

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very small

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negligible

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large

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Solution

The correct option is D
large

Polymer always consists of hundreds to thousands of repeating structural units. Hence they have very high molecular mass.

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Similar questions

Q. A sample of polymer contains

30 %

molecules with molecular mass

20, 000

40 %

with molecular mass

30, 000

and

30 %

with molecular mass

60, 000

. What is the number average molecular mass of the polymer?

Q. The number average molecular mass and mass average molecular mass of a polymer are

30, 000

and

40, 000

respectively. The PDI of the polymer is

The mass average molecular mass & number average molecular mass of a polymer are respectively 40,000 and 30,000. The polydispersity index of polymer will be ?

Q. The

P

(PDI) of a polymer is :

({¯ ¯¯¯¯ ¯ M}_{w} =

weight average molecular mass and

{¯ ¯¯¯¯ ¯ M}_{n} =

number average molecular mass)

Q. Number-average molecular mass of a polymer is determined by:

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Molecular mass of polymer is

The correct option is D largePolymer always consists of hundreds to thousands of repeating structural units. Hence they have very high molecular mass.

The correct option is D
large

Polymer always consists of hundreds to thousands of repeating structural units. Hence they have very high molecular mass.