Class 9 Exam > Class 9 Questions > Which property does not describe a compound?a...
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Which property does not describe a compound?
- a)It is a pure substance.
- b)It is mixed in any proportion by mass.
- c)It cannot be separated into constituents by physical means.
- d)It is composed of two or more elements.
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which property does not describe a compound?a)It is a pure substance.b...
The answer is b because mixed in any promotion that means a mixture if we say that a pure substnce is compund that means it has definite composition so it could not be compound.
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Which property does not describe a compound?a)It is a pure substance.b...
Introduction:
A compound is a substance that is composed of two or more elements chemically combined in fixed proportions. It possesses certain properties that distinguish it from other substances. In this context, we will discuss the property that does not describe a compound.
Explanation:
a) It is a pure substance:
- A compound is a pure substance because it has a uniform and definite composition throughout.
- It consists of a fixed ratio of different elements in its structure.
- For example, water (H2O) is a compound that always has two hydrogen atoms and one oxygen atom.
b) It is mixed in any proportion by mass:
- This property does not describe a compound.
- Compounds have fixed ratios of elements, which means they cannot be mixed in any proportion by mass.
- For example, water always contains two hydrogen atoms and one oxygen atom, and this ratio cannot be changed.
c) It cannot be separated into constituents by physical means:
- Compounds cannot be separated into their constituent elements by physical means.
- Chemical reactions are required to break the bonds between atoms in a compound and obtain its constituent elements.
- For example, water can be decomposed into hydrogen and oxygen gas through the process of electrolysis.
d) It is composed of two or more elements:
- This property describes a compound.
- Compounds are formed when two or more elements chemically combine in fixed proportions.
- For example, carbon dioxide (CO2) is a compound composed of carbon and oxygen elements.
Conclusion:
The property that does not describe a compound is option 'b' - "It is mixed in any proportion by mass." Compounds have fixed ratios of elements and cannot be mixed in any proportion. They are pure substances with definite compositions and cannot be separated into their constituent elements by physical means.
A compound is a substance that is composed of two or more elements chemically combined in fixed proportions. It possesses certain properties that distinguish it from other substances. In this context, we will discuss the property that does not describe a compound.
Explanation:
a) It is a pure substance:
- A compound is a pure substance because it has a uniform and definite composition throughout.
- It consists of a fixed ratio of different elements in its structure.
- For example, water (H2O) is a compound that always has two hydrogen atoms and one oxygen atom.
b) It is mixed in any proportion by mass:
- This property does not describe a compound.
- Compounds have fixed ratios of elements, which means they cannot be mixed in any proportion by mass.
- For example, water always contains two hydrogen atoms and one oxygen atom, and this ratio cannot be changed.
c) It cannot be separated into constituents by physical means:
- Compounds cannot be separated into their constituent elements by physical means.
- Chemical reactions are required to break the bonds between atoms in a compound and obtain its constituent elements.
- For example, water can be decomposed into hydrogen and oxygen gas through the process of electrolysis.
d) It is composed of two or more elements:
- This property describes a compound.
- Compounds are formed when two or more elements chemically combine in fixed proportions.
- For example, carbon dioxide (CO2) is a compound composed of carbon and oxygen elements.
Conclusion:
The property that does not describe a compound is option 'b' - "It is mixed in any proportion by mass." Compounds have fixed ratios of elements and cannot be mixed in any proportion. They are pure substances with definite compositions and cannot be separated into their constituent elements by physical means.
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Which property does not describe a compound?a)It is a pure substance.b)It is mixed in any proportion by mass.c)It cannot be separated into constituents by physical means.d)It is composed of two or more elements.Correct answer is option 'B'. Can you explain this answer?
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