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Byju's Answer
Standard IX
Chemistry
Empirical Formula
Which choice ...
Question
Which choice is an empirical formula for an ionic compound?
A
H
2
O
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B
F
e
2
O
3
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C
N
2
O
4
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D
N
a
2
C
l
2
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Solution
The correct option is
B
F
e
2
O
3
Given, the compound is ionic.
So,
H
2
O
,
N
2
O
4
are not correct.
While ratio of sodium to chlorine in
N
a
2
C
l
2
=
2
:
2
⇒
Not simplest
⇒
Not Empirical
So,
F
e
2
O
3
is empirical formula of an ionic compound.
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Similar questions
Q.
Which choice is BOTH an empirical formula and a molecular formula?
Q.
The eq. wt. of
N
a
2
S
2
O
3
as reductant in the reaction,
N
a
2
S
2
O
3
+
H
2
O
+
C
l
2
→
N
a
2
S
O
4
+
2
H
C
l
+
S
is ?
Q.
An ionic compound has a unit cell consisting of
A
ions at the corners of a cube and
B
ions on the centres of the face. What is the empirical formula for this compound?
Q.
Which choice is an ionic compound?
Q.
Which choices among the following are a molecular formula but NOT an empirical formula?
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