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The smallest unit of a pure substance which always exist independently and can retain all the physical and chemical properties of that substance is called a
- a)Atom
- b)Molecule
- c)Element
- d)Compound
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The smallest unit of a pure substance which always exist independently...
Explanation:
A molecule is the smallest unit of a substance that has all the properties of that substance. It is made up of two or more atoms that are chemically bonded together. Molecules can be made up of atoms of the same element or atoms of different elements.
Examples:
Some examples of molecules include:
- Water (H2O) - made up of two hydrogen atoms and one oxygen atom
- Carbon dioxide (CO2) - made up of one carbon atom and two oxygen atoms
- Glucose (C6H12O6) - made up of six carbon, twelve hydrogen, and six oxygen atoms
Comparison with other options:
- Atom: An atom is the smallest unit of an element that retains its chemical properties. It is made up of a nucleus, which contains protons and neutrons, and electrons that orbit around the nucleus. Atoms can combine with other atoms to form molecules.
- Element: An element is a substance that is made up of only one type of atom. It cannot be broken down into simpler substances by chemical means.
- Compound: A compound is a substance made up of two or more different elements that are chemically bonded together. It has its own unique properties that are different from the elements that make it up.
A molecule is the smallest unit of a substance that has all the properties of that substance. It is made up of two or more atoms that are chemically bonded together. Molecules can be made up of atoms of the same element or atoms of different elements.
Examples:
Some examples of molecules include:
- Water (H2O) - made up of two hydrogen atoms and one oxygen atom
- Carbon dioxide (CO2) - made up of one carbon atom and two oxygen atoms
- Glucose (C6H12O6) - made up of six carbon, twelve hydrogen, and six oxygen atoms
Comparison with other options:
- Atom: An atom is the smallest unit of an element that retains its chemical properties. It is made up of a nucleus, which contains protons and neutrons, and electrons that orbit around the nucleus. Atoms can combine with other atoms to form molecules.
- Element: An element is a substance that is made up of only one type of atom. It cannot be broken down into simpler substances by chemical means.
- Compound: A compound is a substance made up of two or more different elements that are chemically bonded together. It has its own unique properties that are different from the elements that make it up.
Community Answer
The smallest unit of a pure substance which always exist independently...
A molecule is a tiny unit of a substance that has all the properties of that substance.
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The smallest unit of a pure substance which always exist independently and can retain all the physical and chemical properties of that substance is called aa)Atomb)Moleculec)Elementd)CompoundCorrect answer is option 'B'. Can you explain this answer?
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