Chemistry

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Matter (Kinetic Molecular Theory)

Subtopic

Matter (Kinetic Molecular Theory) under Chemistry for Grade 8 ICSE.

Preview questions (no answers)

1.
$What happens to the kinetic energy of molecules as we heat a liquid?$
A. $It decreases$
B. $It increases$
C. $It remains the same$
D. $It first increases then decreases$
2.
$Intermolecular space is almost negligible in:$
A. $Alcohol$
B. $Oxygen$
C. $Iron$
D. $Milk$
3.
$What is the name for the process of converting a gas into a liquid?$
A. $Liquefaction$
B. $Solidification$
C. $Vaporization$
D. $Fusion$

Download the worksheet for Chemistry - Matter (Kinetic Molecular Theory) to practice offline. It includes additional chapter-level practice questions.

Physical and Chemical Changes

Subtopic

Physical and Chemical Changes under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$The fermentation of sugar into alcohol by yeast is a:$
A. $Physical change$
B. $Chemical change$
C. $Reversible process$
D. $None of these$
2.
$Crushing an aluminum can is a physical change because:$
A. $The metal becomes a different element$
B. $The mass of the can increases$
C. $Only the shape of the can changes$
D. $A gas is released during crushing$
3.
$Which of the following is NOT a chemical change?$
A. $Ripening of fruit$
B. $Melting of ice cream$
C. $Digestion of food$
D. $Burning of coal$

Download the worksheet for Chemistry - Physical and Chemical Changes to practice offline. It includes additional chapter-level practice questions.

Elements, Compounds and Mixtures (Separation Techniques)

Subtopic

Elements, Compounds and Mixtures (Separation Techniques) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following methods is used to separate seeds from fruit juice?$
A. $Filtration$
B. $Crystallization$
C. $Sublimation$
D. $Distillation$
2.
$What do we call the liquid that passes through the filter paper during filtration?$
A. $Residue$
B. $Filtrate$
C. $Solvent$
D. $Distillate$
3.
$The process of 'loading' helps in the sedimentation of:$
A. $Heavy sand particles$
B. $Light suspended clay particles$
C. $Dissolved salts$
D. $Floating oil drops$

Download the worksheet for Chemistry - Elements, Compounds and Mixtures (Separation Techniques) to practice offline. It includes additional chapter-level practice questions.

Atomic Structure (Protons, Neutrons, Electrons, Valency, Isotopes)

Subtopic

Atomic Structure (Protons, Neutrons, Electrons, Valency, Isotopes) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following is an example of an isobar pair?$
A. $^{12}C$
B. $^{35}Cl$
C. $^{40}Ar$
D. $^{1}H$
2.
$The chemical properties of an atom are primarily determined by its:$
A. $Number of neutrons$
B. $Valence electrons$
C. $Mass number$
D. $Atomic mass$
3.
$If an element has atomic number 19, how many shells does its atom have?$
A. $2$
B. $3$
C. $4$
D. $5$

Download the worksheet for Chemistry - Atomic Structure (Protons, Neutrons, Electrons, Valency, Isotopes) to practice offline. It includes additional chapter-level practice questions.

Language of Chemistry (Symbols, Formulae, Balancing Equations)

Subtopic

Language of Chemistry (Symbols, Formulae, Balancing Equations) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$What is the chemical formula for Hydrogen Chloride (Hydrochloric acid gas)?$
A. $HCl$
B. $H_2Cl$
C. $HCl_2$
D. $H_2Cl_2$
2.
$What is the chemical symbol for Manganese?$
A. $Ma$
B. $Mg$
C. $Mn$
D. $Me$
3.
$What is the chemical symbol for Nickel?$
A. $Ni$
B. $N$
C. $Ne$
D. $Na$

Download the worksheet for Chemistry - Language of Chemistry (Symbols, Formulae, Balancing Equations) to practice offline. It includes additional chapter-level practice questions.

Chemical Reactions (Types of Reactions, Oxides)

Subtopic

Chemical Reactions (Types of Reactions, Oxides) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following is an example of a fast chemical reaction?$
A. $Rusting of iron$
B. $Formation of coal$
C. $Burning of a matchstick$
D. $Growth of a plant$
2.
$CaO$
A. $Combination$
B. $Decomposition$
C. $Displacement$
D. $Neutralization$
3.
$In a chemical equation, the substances written on the left side of the arrow are called:$
A. $Products$
B. $Catalysts$
C. $Reactants$
D. $Precipitates$

Download the worksheet for Chemistry - Chemical Reactions (Types of Reactions, Oxides) to practice offline. It includes additional chapter-level practice questions.

Hydrogen (Preparation, Properties, Uses)

Subtopic

Hydrogen (Preparation, Properties, Uses) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$What is the symbol used for the element Hydrogen?$
A. $He$
B. $Hy$
C. $H$
D. $Hg$
2.
$Which of these acids will NOT produce hydrogen when reacted with zinc?$
A. $Dilute sulfuric acid$
B. $Dilute hydrochloric acid$
C. $Concentrated nitric acid$
D. $Dilute phosphoric acid$
3.
$PbO + H_2 \rightarrow Pb + H_2O$
A. $H_2$
B. $PbO$
C. $Pb$
D. $H_2O$

Download the worksheet for Chemistry - Hydrogen (Preparation, Properties, Uses) to practice offline. It includes additional chapter-level practice questions.

Water (Hard and Soft Water, Water Pollution)

Subtopic

Water (Hard and Soft Water, Water Pollution) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of these chemical compounds is 'Washing Soda'?$
A. $NaHCO_3$
B. $Na_2CO_3 \cdot 10H_2O$
C. $NaOH$
D. $NaCl$
2.
$Which of the following is a major cause of groundwater pollution?$
A. $Rainwater harvesting$
B. $Seepage of chemical fertilizers and pesticides from fields$
C. $Planting trees$
D. $Evaporation of surface water$
3.
$Boiling water is a simple way to:$
A. $Increase permanent hardness$
B. $Remove dissolved oxygen only$
C. $Kill germs and remove temporary hardness$
D. $Convert soft water into hard water$

Download the worksheet for Chemistry - Water (Hard and Soft Water, Water Pollution) to practice offline. It includes additional chapter-level practice questions.

Carbon and its Compounds (Allotropes, Carbon Dioxide, Methane)

Subtopic

Carbon and its Compounds (Allotropes, Carbon Dioxide, Methane) under Chemistry for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following substances is used as a moderator in nuclear reactors?$
A. $Diamond$
B. $Graphite$
C. $Coke$
D. $Lampblack$
2.
$Carbon dioxide is an example of an:$
A. $Acidic oxide$
B. $Basic oxide$
C. $Neutral oxide$
D. $Amphoteric oxide$
3.
$Which form of coal is considered the lowest grade and has the least carbon content?$
A. $Anthracite$
B. $Bituminous$
C. $Lignite$
D. $Peat$

Download the worksheet for Chemistry - Carbon and its Compounds (Allotropes, Carbon Dioxide, Methane) to practice offline. It includes additional chapter-level practice questions.

Chemistry

Matter (Kinetic Molecular Theory)

❓Preview questions (no answers)

Physical and Chemical Changes

❓Preview questions (no answers)

Elements, Compounds and Mixtures (Separation Techniques)

❓Preview questions (no answers)

Atomic Structure (Protons, Neutrons, Electrons, Valency, Isotopes)

❓Preview questions (no answers)

Language of Chemistry (Symbols, Formulae, Balancing Equations)

❓Preview questions (no answers)

Chemical Reactions (Types of Reactions, Oxides)

❓Preview questions (no answers)

Hydrogen (Preparation, Properties, Uses)

❓Preview questions (no answers)

Water (Hard and Soft Water, Water Pollution)

❓Preview questions (no answers)

Carbon and its Compounds (Allotropes, Carbon Dioxide, Methane)

❓Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)