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Standard VII
Chemistry
Oxygen
The colour of...
Question
The colour of mercuric oxide is:
A
blue
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B
pink
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C
red
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D
black
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Solution
The correct option is
C
red
Mercuric chloride is red in colour.
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Similar questions
Q.
The elements present in mercuric oxide are:
Q.
The decomposition of mercuric oxide (
H
g
)
) on heating, resulting in the formation of mercury and oxygen, is represented by the following chemical equation-
2
H
g
O
+
180
k
J
⟶
2
H
g
+
O
2
Which one of the following represents the heat of formation of mercuric oxide?
Q.
(i) Reaction between calcium oxide and water is a _______ reaction
(ii) Treatment of mercuric oxide with strong heat is a ________ reaction
Q.
(i) Reaction between calcium oxide and water is a ...... reaction.
(ii) Action of strong heat on mercuric oxide is a ...... reaction.
Q.
State the given statement is true or false.
Statement: Mercuric oxide is reduced by thermal decomposition.
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