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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 : 96
Total: 100
When
0.15
g
of an organic compound was analyzed using Carius method for estimation of bromine,
0.2397
g
of
A
g
B
r
was obtained. The percentage of bromine in the organic compound is ________.(Nearest integer)
[Atomic mass : Silver
=
108
, Bromine
=
80
]
[20 Jul 2021 Shift 2]
Your Answer:
Validate
Solution:
Moles of Br = Moles of AgBr obtained
⇒
Mass of
B
r
=
0.2397
188
×
80
g
therefore % Br in the organic compound
=
W
B
r
W
T
×
100
=
0.2397
×
80
188
×
0.15
×
100
=
0.85
×
80
=
68
⇒ Nearest integer is '68'
© examsnet.com
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