Master the Basics of Chemistry with this rigorous set of 9th Class Chemistry Chapter 1 MCQs. Multiple Choice Questions in it covers important concepts like matter, mixtures, elements, and compounds that help the students build a solid base. Ideal for exams, this post contains the answers and explanations in order to render perfect clarity to concepts. These Chemistry MCQs are useful to learn, either while you’re revising for tests or while you’re improving your understanding. Upgrade those grades with trending phrases such as basic concepts in chemistry and chemical basics quiz.
Chemistry is the study of:
a) Animals
b) Plants
c) Matter and its properties
d) Space
Which of the following is NOT a state of matter?
a) Solid
b) Liquid
c) Gas
d) Energy
The smallest unit of an element that retains its chemical properties is called:
a) Molecule
b) Compound
c) Atom
d) Cell
The chemical symbol “H” represents which element?
a) Hydrogen
b) Helium
c) Carbon
d) Nitrogen
A substance made up of two or more different elements chemically combined in a fixed ratio is called:
a) Mixture
b) Compound
c) Solution
d) Element
The basic building block of matter is:
a) Cell
b) Atom
c) Molecule
d) Electron
The chemical symbol “O” represents which element?
a) Oxygen
b) Ozone
c) Carbon
d) Nitrogen
The study of the composition, structure, properties, and changes of matter is called:
a) Biology
b) Chemistry
c) Chemistry
d) Geology
Which of the following is a pure substance?
a) Air
b) Sugar
c) Saltwater
d) Soil
The chemical symbol “C” represents which element?
a) Calcium
b) Carbon
c) Copper
d) Chromium
The basic unit of a chemical element is:
a) Molecule
b) Compound
c) Atom
d) Cell
Which of the following is an example of a chemical change?
a) Melting ice
b) Boiling water
c) Burning wood
d) Cutting paper
The chemical symbol “N” represents which element?
a) Nitrogen
b) Neon
c) Nickel
d) Sodium
A substance made up of two or more different elements physically mixed together is called:
a) Mixture
b) Compound
c) Solution
d) Element
The center of an atom, containing protons and neutrons, is called the:
a) Electron cloud
b) Nucleus
c) Electron shell
d) Orbital
The chemical symbol “He” represents which element?
a) Helium
b) Hydrogen
c) Helix
d) Hafnium
A substance made up of only one type of atom is called:
a) Mixture
b) Compound
c) Solution
d) Element
Which of the following is an example of a physical change?
a) Rusting iron
b) Digesting food
c) Burning paper
d) Cutting a rope
The chemical symbol “Fe” represents which element?
a) Fluorine
b) Iron
c) Francium
d) Lead
An atom that has gained or lost electrons and carries an electric charge is called a/an:
a) Molecule
b) Compound
c) Ion
d) Electron
The chemical symbol “Ne” represents which element?
a) Neon
b) Nitrogen
c) Nickel
d) Sodium
The smallest unit of a compound that retains its chemical properties is called:
a) Molecule
b) Element
c) Atom
d) Cell
Which of the following is NOT a physical property of matter?
a) Color
b) Mass
c) Flammability
d) Density
The chemical symbol “Na” represents which element?
a) Nitrogen
b) Neon
c) Nickel
d) Sodium
An atom that has lost electrons becomes a:
a) Cation
b) Anion
c) Molecule
d) Compound
The chemical symbol “Ar” represents which element?
a) Argon
b) Aluminum
c) Arsenic
d) Actinium
The study of matter and the changes it undergoes is known as:
a) Chemistry
b) Chemistry
c) Biology
d) Geology
Which of the following is a chemical property of matter?
a) Melting point
b) Color
c) Density
d) Reactivity with acid
The chemical symbol “K” represents which element?
a) Potassium
b) Phosphorus
c) Platinum
d) Palladium
An atom that has gained electrons becomes a:
a) Cation
b) Anion
c) Molecule
d) Compound
The chemical symbol “Xe” represents which element?
a) Xenon
b) Xenolith
c) Xenophobe
d) Xenograft
The ability of a substance to undergo a chemical change and form new substances is called:
a) Reactivity
b) Density
c) Melting point
d) Boiling point
The chemical symbol “Ca” represents which element?
a) Calcium
b) Carbon
c) Copper
d) Chromium
The study of the composition, structure, properties, and changes of matter is called:
a) Biology
b) Chemistry
c) Chemistry
d) Geology
Which of the following is a pure substance?
a) Air
b) Sugar
c) Saltwater
d) Soil
The chemical symbol “Cu” represents which element?
a) Copper
b) Carbon
c) Calcium
d) Chromium
Which of the following is an example of a chemical change?
a) Melting ice
b) Boiling water
c) Burning wood
d) Cutting paper
The center of an atom, containing protons and neutrons, is called the:
a) Electron cloud
b) Nucleus
c) Electron shell
d) Orbital
The chemical symbol “Ag” represents which element?
a) Silver
b) Sodium
c) Silicon
d) Sulfur
An atom that has gained or lost electrons and carries an electric charge is called a/an:
a) Molecule
b) Compound
c) Ion
d) Electron
The chemical symbol “Si” represents which element?
a) Silicon
b) Silver
c) Sodium
d) Sulfur
The smallest unit of a compound that retains its chemical properties is called:
a) Molecule
b) Element
c) Atom
d) Cell
Which of the following is NOT a physical property of matter?
a) Color
b) Mass
c) Flammability
d) Density
The chemical symbol “S” represents which element?
a) Silver
b) Sodium
c) Silicon
d) Sulfur
An atom that has lost electrons becomes a:
a) Cation
b) Anion
c) Molecule
d) Compound
The chemical symbol “Kr” represents which element?
a) Krypton
b) Kronos
c) Kryptonite
d) Kryptonian
The study of matter and the changes it undergoes is known as:
a) Chemistry
b) Chemistry
c) Biology
d) Geology
Which of the following is a chemical property of matter?
a) Melting point
b) Color
c) Density
d) Reactivity with acid
The chemical symbol “Na” represents which element?
a) Nitrogen
b) Neon
c) Nickel
d) Sodium
An atom that has gained electrons becomes a:
a) Cation
b) Anion
c) Molecule
d) Compound
The chemical symbol “Xe” represents which element?
a) Xenon
b) Xenolith
c) Xenophobe
d) Xenograft
The ability of a substance to undergo a chemical change and form new substances is called:
a) Reactivity
b) Density
c) Melting point
d) Boiling point
The chemical symbol “Ca” represents which element?
a) Calcium
b) Carbon
c) Copper
d) Chromium
The study of the composition, structure, properties, and changes of matter is called:
a) Biology
b) Chemistry
c) Chemistry
d) Geology
Which of the following is a pure substance?
a) Air
b) Sugar
c) Saltwater
d) Soil
The chemical symbol “Cu” represents which element?
a) Copper
b) Carbon
c) Calcium
d) Chromium
Which of the following is an example of a chemical change?
a) Melting ice
b) Boiling water
c) Burning wood
d) Cutting paper
The center of an atom, containing protons and neutrons, is called the:
a) Electron cloud
b) Nucleus
c) Electron shell
d) Orbital
The chemical symbol “Ag” represents which element?
a) Silver
b) Sodium
c) Silicon
d) Sulfur
An atom that has gained or lost electrons and carries an electric charge is called a/an:
a) Molecule
b) Compound
c) Ion
d) Electron
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