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Molecular mass of polymers
JEE Main level
Single correct option
Difficulty 2 of 3
pl139
A polymer has
M
w
=
1.00
×
1
0
5
g
mo
l
−
1
and PDI
=
2.00
. Its
M
n
in
g
mo
l
−
1
is
A
5.00
×
1
0
4
B
2.00
×
1
0
5
C
1.41
×
1
0
5
D
1.00
×
1
0
5
Answer: A
M
n
=
M
w
/
PDI
=
1.00
×
1
0
5
/2.00
=
5.00
×
1
0
4
g
mo
l
−
1
.
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