
Which of the following is an example of pure substance?
A) Pure water.
B) Gold.
C) Table salt.
D) All of the above.
Answer
509.1k+ views
Hint: We know that everything that exists within the earth may be a sort of a matter which is further defined as any substance that occupies space and has mass. The matter is further divided into various forms like solid, liquid, and gas. It is again classified as pure substances and mixtures.
Complete step by step answer:
As we know that in chemistry, a substance is pure if it's a homogeneous chemical composition. At the nanoscale, this only applies to a substance made from one sort of atom, molecule, or compound.
In general, a pure substance is any homogeneous mixture. That is its matter that uniforms in appearance and composition, regardless of how small the sample size.
Iron, steel, and water are some of the examples of a pure substance. Air may be a homogeneous mixture that's often considered to be a pure substance. As we know diamond, sucrose, honey, and air all are pure substances.
Pure water has two hydrogens and one oxygen atom. These atoms are chemically bonded to every other. Also pure gold consists of gold atoms only. Salt (sodium chloride) can't be separated by physical means and features a constant chemical composition.
Therefore, all of the above examples are pure substances. i.e., the option D is correct.
Note:
Now we discuss about the characteristics and properties of pure substances:
Pure substances are mostly homogeneous containing just one sort of atom or molecules.
These substances mainly have a continuing or uniform composition throughout.
A pure substance usually participates during a reaction to make predictable products.
Complete step by step answer:
As we know that in chemistry, a substance is pure if it's a homogeneous chemical composition. At the nanoscale, this only applies to a substance made from one sort of atom, molecule, or compound.
In general, a pure substance is any homogeneous mixture. That is its matter that uniforms in appearance and composition, regardless of how small the sample size.
Iron, steel, and water are some of the examples of a pure substance. Air may be a homogeneous mixture that's often considered to be a pure substance. As we know diamond, sucrose, honey, and air all are pure substances.
Pure water has two hydrogens and one oxygen atom. These atoms are chemically bonded to every other. Also pure gold consists of gold atoms only. Salt (sodium chloride) can't be separated by physical means and features a constant chemical composition.
Therefore, all of the above examples are pure substances. i.e., the option D is correct.
Note:
Now we discuss about the characteristics and properties of pure substances:
Pure substances are mostly homogeneous containing just one sort of atom or molecules.
These substances mainly have a continuing or uniform composition throughout.
A pure substance usually participates during a reaction to make predictable products.
Latest Vedantu courses for you
Grade 9 | CBSE | SCHOOL | English
Vedantu 9 CBSE Pro Course - (2025-26)
School Full course for CBSE students
₹37,300 per year
Recently Updated Pages
Master Class 12 Economics: Engaging Questions & Answers for Success

Master Class 12 Maths: Engaging Questions & Answers for Success

Master Class 12 Biology: Engaging Questions & Answers for Success

Master Class 12 Physics: Engaging Questions & Answers for Success

Master Class 12 Business Studies: Engaging Questions & Answers for Success

Master Class 12 English: Engaging Questions & Answers for Success

Trending doubts
What is the Full Form of ISI and RAW

Difference Between Plant Cell and Animal Cell

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

Name the states which share their boundary with Indias class 9 social science CBSE

Name 10 Living and Non living things class 9 biology CBSE

Discuss what these phrases mean to you A a yellow wood class 9 english CBSE
