ICSE Class 10 The d- and f-Block Elements — Mock Test (2027)
Free online mock test for The d- and f-Block Elements (ICSE Class 10 Chemistry) — 80 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 The d- and f-Block Elements 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.The lanthanoids are the fourteen elements following which element?
- A.Lanthanum
- B.Actinium
- C.Cerium
- D.Lutetium
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2.Consider the statements: (I) The atomic radii of the 4d series are larger than those of the corresponding 3d series. (II) The atomic radii of the 5d series are nearly equal to those of the 4d series. Which is correct?
- A.Both I and II are correct
- B.Only I is correct
- C.Only II is correct
- D.Neither I nor II is correct
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3.The ability of which element to stabilise the highest oxidation state of a metal is demonstrated by Mn2O7, whose oxidation state exceeds that in MnF4?
- A.Oxygen
- B.Fluorine
- C.Chlorine
- D.Nitrogen
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4.Why are KMnO4 titrations carried out in the presence of hydrochloric acid considered unsatisfactory?
- A.Hydrochloric acid is itself oxidised by permanganate to chlorine
- B.Hydrochloric acid reduces Mn2+ to Mn metal
- C.Hydrochloric acid forms a precipitate with K+
- D.Permanganate is insoluble in hydrochloric acid
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5.Compared with the lanthanoids, the actinoids exhibit:
- A.A greater range of oxidation states because the 5f, 6d and 7s levels are of comparable energies
- B.Only a single +3 oxidation state
- C.No variable oxidation states at all
- D.Lower reactivity than gold
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