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TS EAMCET 2015 Solved Paper
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© examsnet.com
Question : 142
Total: 160
An organic compound having C,H and O has
13.13
%
H,
52.14
%
C, its molar mass is 46.068 g. What are its empirical and molecular formula ?
C
2
H
6
O
,
C
4
H
12
O
2
C
H
3
O
,
C
2
H
6
O
2
C
2
H
6
O
,
C
2
H
6
O
C
2
H
6
O
2
,
C
3
H
9
O
4
Validate
Solution:
C
=
52.14
12
=
4.34
4.34
2.16
=
2
H
=
13.13
1
=
13.13
13.13
2.16
=
6
O
=
34.63
16
=
2.16
2.16
2.16
=
1
∴
E
.
F
=
C
2
H
6
O
∴ Mol.wt given
=
46.068
E.F wt
=
46
∴
n
=
Mol.wt
E.F wt
=
46.068
46
=
1
∴
M
.
F
=
E
.
F
×
n
=
C
2
H
6
O
×
1
=
C
2
H
6
O
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