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Standard XII
Chemistry
Nature of Matter
Question
Identify the compounds among the following:
(a) Milk (b) Sodium (c) Calcium Carbonate (d) Methane
Milk, Calcium carbonate
Sodium
Calcium carbonate, Methane
None of the above
A
Milk, Calcium carbonate
B
None of the above
C
Calcium carbonate, Methane
D
Sodium
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Solution
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Compounds is a pure substance made up of two or more elements combined chemically in a definite (or constant) proportion by mass.
Calcium carbonate is
C
a
C
O
3
, Methane is
C
H
4
--- Compound.
Sodium ----- Element.
Milk ---------- Mixture.
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Identify the compounds among the following:
(a) Milk (b) Sodium (c) Calcium Carbonate (d) Methane
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