ICSE Class 10 Periodic Properties and Variations of Properties — Mock Test (2027)
Free online mock test for Periodic Properties and Variations of Properties (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Periodic Properties and Variations of Properties chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Parts (a) to (e) refer to changes in the properties of elements on moving from left to right across a period of the Periodic Table. For each property, choose the correct answer. (a) The non-metallic character of the elements
- a.(i) decreases
- a.(ii) increases
- a.(iii) remains the same
- a.(iv) depends on the period
- b.(i) depends on the number of valence electrons
- b.(ii) remains the same
- b.(iii) decreases
- b.(iv) increases
- c.(i) goes up and down
- c.(ii) decreases
- c.(iii) increases
- c.(iv) remains the same
- d.(i) decreases
- d.(ii) increases
- d.(iii) remains the same
- d.(iv) sometimes increases and sometimes decreases
- e.(i) goes up and then down
- e.(ii) decreases and then increases
- e.(iii) increases
- e.(iv) decreases
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2.What is meant by atomic size, and what is its standard unit?
- A.Atomic size refers to the distance from the nucleus to the outermost electron shell of an atom. Its unit is picometre (pm).
- B.Atomic size is the total number of electrons in an atom. Its unit is electronvolt (eV).
- C.Atomic size measures the mass of an atom. Its unit is atomic mass unit (amu).
- D.Atomic size is the volume occupied by an atom. Its unit is cubic nanometre (nm³).
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3.(a) Choose the correct answer from the choice given : (i) Ionisation potential increases over a period from left to right because the
- a(i).A. Atomic radius and nuclear charge increases
- a(i).B. Atomic radius and nuclear charge decreases
- a(i).C. Atomic radius increases and nuclear charge decreases
- a(i).D. Atomic radius decreases and nuclear charge increases
- a(ii).A. 3 shells and 2 valence electrons
- a(ii).B. 2 shells and 3 valence electrons
- a(ii).C. 3 shells and 3 valence electrons
- a(ii).D. 2 shells and 2 valence electrons
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4.Which metal is present in period 3, group 1 of the periodic table?
- A.Magnesium
- B.Sodium
- C.Aluminium
- D.Potassium
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5.Which of the following correctly lists three properties of halogens (Group 17 elements)?
- A.They are colourless metals, form positive ions with a single charge, and are inert.
- B.They are coloured non-metals, form negative ions with a single charge, and are highly reactive.
- C.They are shiny solids, form neutral atoms, and are found in free states.
- D.They are gases, form positive ions with multiple charges, and are non-reactive.
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