Class 12 Chemistry: d and f Block Elements
This worksheet challenges your understanding of the properties, trends, and applications of d and f block elements, including their electronic configuration, oxidation states, and magnetic behavior.
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- Q1.Which of the following elements exhibits the maximum number of oxidation states?
- A.Mn
- B.Cr
- C.V
- D.Fe
- Q2.The lanthanoid contraction is responsible for the fact that:
- A.Zr and Y have about the same radius.
- B.Zr and Nb have similar oxidation states.
- C.Zr and Hf have almost identical atomic and ionic radii.
- D.Zr and Zn have similar chemical properties.
- Q3.Which of the following statements about interstitial compounds is INCORRECT?
- A.They are chemically inert.
- B.They are very hard.
- C.They have higher melting points than the pure metals.
- D.They retain metallic conductivity.
- Q4.KMnO₄ acts as an oxidizing agent in acidic, alkaline, and neutral media. Which of the following statements is true about its oxidizing action?
- A.It gains 5 electrons in alkaline medium.
- B.It gains 3 electrons in acidic medium.
- C.It gains 1 electron in neutral medium.
- D.It gains 5 electrons in acidic medium.
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What's inside this workbook
This Class 12 Chemistry Practice contains 10 questions across 2 printable pages and includes a full answer key at hard difficulty. Aligned to the CBSE and NCERT syllabus.
How this worksheet helps your child
- Builds confidence in core Chemistry concepts taught in Class 12 through repeated, varied practice.
- Aligned to CBSE and NCERT — questions mirror the pattern children see in school tests and unit assessments.
- Comes with an answer key so parents and students can self-check in minutes, without needing a teacher.
- Pitched at hard level — use it for daily homework, weekend revision or quick exam warm-ups.
Topics covered
How to use this worksheet at home
Open the print view and use your browser's Print dialog to print on regular A4 paper or save as a PDF. Hand the printed sheet to your child (Class 12) and set a relaxed time limit — 15 to 25 minutes works for most Chemistry worksheets. When they're done, open the "With answer key" view and let them self-mark question by question. Re-print as many times as you need; the file never expires and there's no download limit.
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- Is it aligned to the CBSE / NCERT syllabus?
- Yes. All Class 12 worksheets are built around the CBSE and NCERT pattern so they map cleanly to what your child is studying in school.
- Can I print this worksheet at home?
- Yes. Click "Open print view" and use your browser's Print dialog to print on standard A4 paper, or save it as a PDF for later. The layout is designed to fit cleanly without scaling.
- Does it include an answer key?
- Yes — click "With answer key" to print a version with answers included, so parents and students can self-mark in minutes.
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