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Byju's Answer
Standard XII
Chemistry
Ellingham Diagram
n-factor of ...
Question
n-factor of
C
O
2
formed when calcium carbonate is heated is:
A
zero
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B
1
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C
2
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D
3
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Solution
The correct option is
A
zero
n-factor of
C
O
2
formed when
C
a
C
O
3
is healed
C
a
C
O
3
(
+
4
)
⟶
C
a
O
+
C
O
2
(
+
4
)
+
2
+
x
−
6
=
0
x
−
4
=
0
x
=
4
x
=
4
There is no change in oxidation state of carbon.
Therefore n-factor is Zero.
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a
C
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+
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H
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l
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a
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l
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+
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+
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The mass of calcium chloride formed when
2.5 g of calcium carbonate is dissolved in excess of hydrochloric acid is:
Q.
Assertion :When
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Q.
Calcium carbonate decomposes completely, on heating, into lime
(
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and carbon dioxide
(
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. 1 kg of calcium carbonate is completely decomposed by heat, when 560 g of lime are obtained. How much quantity of carbon dioxide in grams, moles and litres at NTP is produced in the process ?
Q.
2 kg of calcium carbonate (lime stone) decomposes completely on heating, forming calcium oxide (lime) and carbon dioxide. If 880 grams of carbon dioxide is formed, what is the mass of calcium oxide formed?
Q.
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a
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+
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is __________.
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