ICSE Class 10 Chemistry Previous Year Questions Periodic Table (With PDF, Answers & Video Solutions) CBSE, ICSE , All State Boards

ICSE Class 10 Chemistry Previous Year Questions – Periodic Table

Struggling with the periodic trends? Confused about electron affinity and ionization potential? You're not alone. The 'Periodic Table, Periodic Properties and Variations of Properties' chapter is one of the most fundamental yet challenging topics in ICSE Class 10 Chemistry. But what if we told you there's a proven secret to mastering it and scoring a perfect 80/80?

Master ICSE Class 10 Chemistry Periodic Table: Top PYQs (2015-2025) to Score 80/80

The answer lies in understanding the exam pattern and focusing on what truly matters. And the best way to do that is by solving Previous Year Questions (PYQs).

Welcome to your ultimate guide from The Agastya Classes, where we'll break down the most important PYQs from 2015 to 2025 for the Periodic Table chapter. Let's unlock that perfect score together!

Why Are PYQs Your Golden Ticket for ICSE Chemistry?

Before we dive into the questions, let's understand why focusing on PYQs is a game-changing strategy for your board exam preparation.

Decode the Exam Pattern: Solving PYQs gives you firsthand experience with the types of questions the ICSE board frequently asks. You'll notice patterns in how concepts are tested.

Identify High-Weightage Topics: You'll quickly see which topics, like electronegativity trends or the properties of alkali metals, are examiner favorites.

Master Time Management: Practicing with real exam questions helps you improve your speed and accuracy, ensuring you can complete the paper comfortably within the given time.

Boost Your Confidence: The more you practice, the more familiar and less intimidating the board exam will feel. There's no better confidence booster than knowing you've already tackled similar questions.

Most Important PYQs: Periodic Table & Properties (2015-2025)

Here is a curated list of the most frequently asked and conceptually important questions from the last decade. We've included detailed answers to help you understand the core concepts.

✅ Extra Value Section: Quick Recap Notes

Add a “Quick Revision Table” (one glance sheet):

Property	Trend Across Period	Trend Down Group	Reason
Atomic Size	Decreases	Increases	Nuclear charge vs no. of shells
Ionization Energy	Increases	Decreases	Nuclear attraction & shielding
Electronegativity	Increases	Decreases	Attraction for shared pair of e⁻
Metallic Character	Decreases	Increases	Tendency to lose electrons

✅ Chapter-Wise Weightage (ICSE Class 10 Chemistry)

Show how Periodic Table & Properties usually carries 10–12 marks in board exams.
Add a small table of year-wise mark distribution (2015–2025).
This gives students a clear idea of the importance of this chapter.

✅ Subtopics to Focus On (High-Scoring Areas)

Break the chapter into must-prepare areas:
Atomic size, ionization potential, electron affinity, electronegativity (definitions + trends).
Metallic and non-metallic character trends across a period and down a group.
Position of elements in the periodic table and predicting their properties.
Reasoning questions like:
Why does fluorine have the highest electronegativity?
Why does ionization energy increase across a period?
Application-based questions (explain properties with examples).

✅ PYQ Practice Strategy

Solve at least 10 years of PYQs (2015–2025).
Mark repeated questions → 90% chance they’ll reappear in some form.
Solve them in exam-like conditions (time-bound).

✅ Common Mistakes to Avoid

Writing incomplete definitions (always include the units and conditions).
Mixing up trends in groups vs periods.
Leaving diagrams/graphs unpracticed.
Ignoring reasoning behind trends → ICSE often asks why.

✅ Smart Revision Techniques

Use flashcards for definitions (atomic radius, electron affinity, etc.).
Make a summary sheet of all trends (with arrows ↑↓ for quick recall).
Solve sample papers/mock tests once a week.
Do group study discussions for reasoning-based questions.

Pro Tips to Score a Perfect 80/80 from Agastya Classes

Solving PYQs is the first step. To truly ace your exam, combine it with these expert strategies:

Master the Definitions: Be crystal clear with all the key definitions (atomic size, metallic character, electronegativity, etc.). Write them down and revise them daily.

Understand the 'Why': Don't just memorize trends. Understand the reasoning behind them (nuclear charge, number of shells). This is key to answering reasoning-based questions.

Practice Diagramming: For questions related to electron dot structures, practice drawing them neatly.

Neat Presentation: Underline keywords in your answers and leave proper spacing. A well-presented answer sheet always creates a good impression on the examiner.

Consistent Revision: Chemistry is a subject that requires regular revision. Dedicate at least 30 minutes every day to revise the periodic table and its properties.

Ready to Ace Your ICSE Chemistry Exam?

Mastering the Periodic Table is crucial for building a strong foundation in Chemistry. By diligently practicing these important PYQs and following our expert tips, you are well on your way to achieving that perfect 80/80 score.

Feeling stuck or want to take your preparation to the next level with personalized guidance?

Join The Agastya Classes today! We provide comprehensive coaching, detailed notes, and personalized doubt-clearing sessions to ensure you are fully prepared for your ICSE board exams.

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📥 Download PDF – ICSE Class 10 Periodic Table PYQs
(With Answers & Video Solutions)