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JEE Main Chemistry Class 11 Organic Chemistry Some Basic Principles and Techniques 2 Questions
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© examsnet.com
Question : 54
Total: 100
In Carius method of estimation of halogen,
0.45
g
of an organic compound gave
0.36
g
of
AgBr
. Find out the percentage of bromine in the compound.
(Molar masses :
AgBr
=
188
g
mol
−
1
;
Br
=
80
g
mol
−
1
)
[27-Jul-2022-Shift-1]
34.04
%
40.04
%
36.03
%
38.04
%
Validate
Solution:
Mass of organic compound
=
0.45
gm
Mass of
AgBr
obtained
=
0.36
gm
∴
Moles of
AgBr
=
0.36
188
∴
Mass of Bromine
=
0.36
188
×
80
=
0.1532
gm
∴
%
Br
in compound
=
0.1532
0.45
×
100
=
34.04
%
© examsnet.com
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