If You’re ZERO in Class 12 Chemistry, Watch This Before It’s Too Late | CBSE 2027

Main ideas / lessons

• Even if you’re behind in Class 12 Chemistry, you can still catch up by following a structured plan with the right resources.
• Class 12 Chemistry should be approached in three parts:
  • Physical Chemistry
  • Inorganic Chemistry
  • Organic Chemistry (described as the hardest because it requires understanding + memorization + reaction practice)
• A key strategy is to:
  • Finish Physical + Inorganic within one month (October)
  • Then complete Organic in one month, using targeted study, NCERT practice, and heavy revision/testing.
• Marks are most often lost in Organic, especially due to:
  • forgetting common names
  • making mistakes in reactions
  • missing/forgetting name reactions

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Detailed study methodology / roadmap

1) Overall structure (Class 12 Chemistry)

• Split the syllabus into:
  • Physical Chemistry
  • Inorganic Chemistry
  • Organic Chemistry
• Use different strategies for each:
  • Physical/Inorganic: can be made strong largely through NCERT + repeated practice
  • Organic: requires reaction mechanisms + memorization + revision sheets

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2) Physical Chemistry (aim: complete in ~1 month; October plan)

Recommended resources

• Study Physical Chemistry from “Ashu Sir” one-shot.
• Then use:
  • NCERT (text + questions)
  • PYQs after finishing NCERT practice
  • (For revision/formulas) short-note/formulaic revision

Step-by-step

1. Start with an Ashu Sir one-shot for Physical Chemistry.
2. Make short notes while studying.
3. Read NCERT, then solve NCERT questions directly.
4. Practice approach for NCERT questions:
   • First attempt may feel easy/low in number of questions
   • Attempt again and again
   • Target: solve the same NCERT questions at least 5 times
   • Include:
     • in-text questions
     • back exercise questions
5. After NCERT is strong, do PYQs for further practice.
6. Keep revising formulas using your short notes.

Concept emphasized: NCERT questions are foundational and can be mastered through repetition; PYQs come later.

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3) Inorganic Chemistry (aim: complete in ~1 month; memorization-heavy)

Recommended resources

• Watch a one-shot lecture (suggested sources):
  • Vijendra Sir (preferred—teaches numericals “in a funny way” and makes concepts easier)
  • Alternative: Ashish Sir
• Then use:
  • NCERT
  • Important PYQs / important lines

Step-by-step

1. Watch an inorganic one-shot first (for clarity + numericals).
2. Read NCERT thoroughly:
   • Read as much as possible
   • Read every important line carefully
3. Reasoning behind the strategy:
   • Inorganic questions repeat from the same NCERT facts
   • Many questions repeat every year with similar reasoning/grounds.
4. Memorization workflow:
   • Remember important lines and/or
   • Read important PYQs
5. While studying important PYQs:
   • Look for patterns (example given):
     • certain oxidation-state changes appear repeatedly
   • Learn to write:
     • the reason
     • the direct one-line answer
6. Do not skip NCERT back exercises.
7. Goal: Finish Physical + Inorganic in October (along with other subjects being managed too).

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4) Organic Chemistry (aim: complete in ~1 month; hardest part)

Positioning

• Organic is described as a combination of Physical + Inorganic because it requires:
  • understanding
  • memorization

Recommended resources

• “OG lectures” / the Class 12 Organic playlist:
  • Om Pandey Sir (mentioned as teaching from basics of Class 11 smoothly)
• NCERT (core for practice and theory)
• Reaction sheets / mechanism practice
• Revision resources mentioned later:
  • Saurabh Riana channel
  • Mind Map series (PW)

Step-by-step

1. Start with the OG lectures by Om Pandey Sir:
   • Even if Class 11 basics are weak, the content is said to be taught from basics and built up smoothly.
2. Make your own notes during learning.
3. Focus heavily on reaction mechanisms and reactions:
   • Create reaction sheets
   • Revise reaction sheets repeatedly
4. Reaction sheet method (as described):
   • Write reactants
   • Try to write products
   • Sometimes write in reverse
   • Goal: make multi-step 5-mark reaction questions easier
5. Use NCERT intensively, not just reading:
   • Read NCERT again and again
   • Whenever you see a line/idea, generate direct “reason” style questions from it
   • In the book:
     • write questions from those lines
     • write and mark answers in your notes/NCERT itself
6. Completion plan:
   • Complete Organic in one month
   • Optional sequencing:
     • finish Biomolecules first
     • then complete the remaining chapters

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5) Question practice (how to practice)

• For question practice, use:
  • your notes + NCERT + PYQ books
• The speaker suggests relying on what you already built (notes/sheets) rather than separately buying new question-only material.

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6) Revision strategy (recommended channels/resources)

• For revision:
  • Saurabh Riana channel
    • revision of PYQs
    • short videos
    • helps revise chapters and end questions
• Most emphasized resource:
  • PW’s Mind Map series
    • “covers everything”
    • includes about a 1-hour lecture
    • you can use it for short notes or download PDFs and print them

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7) Testing / sample paper trigger point

• Start giving sample papers as soon as you complete 60% of the syllabus, even if the remaining 40% isn’t done yet.

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8) Common mistakes to avoid (based on the speaker’s experience)

• Organic marks were deducted mainly due to:
  • not remembering common names
  • making a mistake in a reaction
• Avoid this by:
  • making reaction sheets (so reactions don’t get wrong)
  • making sheets for reagents
  • making sheets for common names
  • making name reaction sheets
  • revising:
    • molecular weights and related required facts
• Explicit warning:
  • If you forget reactions or name reactions, you lose marks.

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Sources / speakers featured (as mentioned)

1. Ashu Sir — recommended for Physical Chemistry one-shot
2. Vijendra Sir — recommended for Inorganic Chemistry one-shot; preferred
3. Ashish Sir — alternative for Inorganic Chemistry
4. Om Pandey Sir — Organic Chemistry lectures / Class 12 playlist
5. Saurabh Riana — revision via PYQs and short videos
6. PW (Physics Wallah) — specifically “PW’s Mind Map series” (Mind Map PDFs/lectures mentioned)