Elements, Compounds and Mixtures
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Pure and Impure Substances
SubtopicPure and Impure Substances under Elements, Compounds and Mixtures for Grade 7 ICSE.
Preview questions (no answers)
- 1.
Which of the following is the symbol for the element Iodine?
A.Io
B.Id
C.I
D.In
- 2.
The symbol 'Al' stands for:
A.Silver
B.Gold
C.Aluminum
D.Argon
- 3.
Which of the following is a diatomic molecule?
A.B.C.D.
Download the worksheet for Elements, Compounds and Mixtures - Pure and Impure Substances to practice offline. It includes additional chapter-level practice questions.
Separation Techniques (Filtration, Distillation, Chromatography)
SubtopicSeparation Techniques (Filtration, Distillation, Chromatography) under Elements, Compounds and Mixtures for Grade 7 ICSE.
Preview questions (no answers)
- 1.
Which separation technique is commonly used to purify water for use in car batteries or science experiments?
A.Filtration
B.Distillation
C.Sieving
D.Chromatography
- 2.
What is the term for a substance that dissolves in a liquid?
A.Insoluble
B.Solvent
C.Soluble
D.Residue
- 3.
Which of these mixtures is best separated by distillation?
A.Alcohol and water
B.Sand and gravel
C.Oil and water
D.Pebbles and water
Download the worksheet for Elements, Compounds and Mixtures - Separation Techniques (Filtration, Distillation, Chromatography) to practice offline. It includes additional chapter-level practice questions.
Crystallization
SubtopicCrystallization under Elements, Compounds and Mixtures for Grade 7 ICSE.
Preview questions (no answers)
- 1.
Which of these is NOT a step in the crystallization of copper sulphate?
A.Dissolving
B.Filtration
C.Cooling
D.Distillation
- 2.
What does a 'homogeneous mixture' mean in the context of preparing for crystallization?
A.A mixture with different properties in different parts
B.A uniform solution of solute and solvent
C.A mixture of two solids
D.A mixture of oil and water
- 3.
The sharp points where the faces of a crystal meet are called:
A.Edges
B.Vertices
C.Planes
D.Liquors
Download the worksheet for Elements, Compounds and Mixtures - Crystallization to practice offline. It includes additional chapter-level practice questions.
Types of Mixtures
SubtopicTypes of Mixtures under Elements, Compounds and Mixtures for Grade 7 ICSE.
Preview questions (no answers)
- 1.
If you mix sugar and wheat flour, the resulting mixture is:
A.Homogeneous
B.Heterogeneous
C.A compound
D.An element
- 2.
Mist is formed by droplets of water in the air. Mist is a:
A.Gas-gas mixture
B.Liquid-gas mixture
C.Solid-gas mixture
D.Solid-liquid mixture
- 3.
A mixture of pebbles and water is:
A.Heterogeneous
B.Homogeneous
C.A solution
D.An alloy
Download the worksheet for Elements, Compounds and Mixtures - Types of Mixtures to practice offline. It includes additional chapter-level practice questions.