Answer
Verified
404.7k+ views
Hint: Classification between elements, compounds and mixtures are made on the basis of their compositions. So, we need to know the basic unit structure before, in order to classify the mentioned options. Discuss about each one of them individually to get a better idea.
Step by step answer:
An element is a substance that is made entirely from one type of atom. In case the number of protons in the atom gets changed then the type of the element is changed.
A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. Two atoms of the same element bonded in a molecule do not form a chemical compound, since this would require two different elements.
Mixture: In chemistry, a mixture is a material made up of two or more different substances which are physically combined. A mixture is a physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
Therefore let us classify the options on the basis of the above mentioned definitions.
1. Sodium: Element (made up of only one type of atom)
2. Soil: Mixture (composed of small pieces of a variety of material, so it is a heterogeneous mixture)
3. Sugar Solution: Mixture (because sugar can be easily separated from water by crystallisation)
4. Silver: Element (made up of only one type of atom)
5. Calcium carbonate: Compound (made up of atoms of the elements of calcium, carbon and oxygen, held together by chemical bonding)
6. Tin: Element (made up of only one type of atom)
7. Silicon: Element (made up of only one type of atom)
8. Coal: Mixture (heterogeneous mixture of carbon, hydrogen sulphur, volatile impurities and moisture)
9. Air: Mixture (composed of oxygen, nitrogen, water vapour and dust particles)
10. Methane: Compound (made up of atoms of the elements of carbon and hydrogen, held together by chemical bonding)
11. Carbon dioxide: Compound (made up of atoms of the elements of carbon and oxygen, held together by chemical bonding)
12. Sea water: Mixture ( because it has all the salts suspended at the top)
Note:
1. Atoms can exist as either atoms or molecules.
2. Compounds have properties that are different from its component elements.
3. Mixtures often retain the properties of their components.
Step by step answer:
An element is a substance that is made entirely from one type of atom. In case the number of protons in the atom gets changed then the type of the element is changed.
A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. Two atoms of the same element bonded in a molecule do not form a chemical compound, since this would require two different elements.
Mixture: In chemistry, a mixture is a material made up of two or more different substances which are physically combined. A mixture is a physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
Therefore let us classify the options on the basis of the above mentioned definitions.
1. Sodium: Element (made up of only one type of atom)
2. Soil: Mixture (composed of small pieces of a variety of material, so it is a heterogeneous mixture)
3. Sugar Solution: Mixture (because sugar can be easily separated from water by crystallisation)
4. Silver: Element (made up of only one type of atom)
5. Calcium carbonate: Compound (made up of atoms of the elements of calcium, carbon and oxygen, held together by chemical bonding)
6. Tin: Element (made up of only one type of atom)
7. Silicon: Element (made up of only one type of atom)
8. Coal: Mixture (heterogeneous mixture of carbon, hydrogen sulphur, volatile impurities and moisture)
9. Air: Mixture (composed of oxygen, nitrogen, water vapour and dust particles)
10. Methane: Compound (made up of atoms of the elements of carbon and hydrogen, held together by chemical bonding)
11. Carbon dioxide: Compound (made up of atoms of the elements of carbon and oxygen, held together by chemical bonding)
12. Sea water: Mixture ( because it has all the salts suspended at the top)
Note:
1. Atoms can exist as either atoms or molecules.
2. Compounds have properties that are different from its component elements.
3. Mixtures often retain the properties of their components.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
The branch of science which deals with nature and natural class 10 physics CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE
Select the correct plural noun from the given singular class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
The sum of three consecutive multiples of 11 is 363 class 7 maths CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
How many squares are there in a chess board A 1296 class 11 maths CBSE