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Class 11 NEET Chemistry Some Basic Concepts Of Chemistry
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© examsnet.com
Question : 6
Total: 60
A compound
X
contains
32
%
of
A
,
20
%
of
B
and remaining percentage of
C
. Then, the empirical formula of
X
is :
(Given atomic masses of
A
=
64
;
B
=
40
;
C
=
32
u
)
[NEET 2024]
A
2
BC
2
ABC
3
AB
2
C
2
ABC
4
Validate
Solution:
👈: Video Solution
Element
Masspercentage %
No. of moles
No. of moles/Smallest number
Simplest whole number
A
32%
32
64
=
1
2
1
2
×
2
=
1
B
20%
20
40
=
1
2
1
2
×
2
=
1
C
48%
48
32
=
3
2
3
2
×
2
=
3
So, empirical formula of
X
=
A
:
B
:
C
1
:
1
:
3
∴ The correct empirical formula of compound X is
ABC
3
© examsnet.com
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