Important Questions for Class 11 & 12 Physics & Chemistry with answers

The most important chapters for Class 12 Physics boards are Electrostatics, Ray Optics, Wave Optics, Electromagnetic Induction, Alternating Current, Modern Physics, and Semiconductors. Together these units account for approximately 60–65 marks out of 70 in the theory paper. Electrostatics and Optics consistently carry the highest individual chapter weightage across CBSE board years.

NCERT questions are necessary but not entirely sufficient for scoring 90+. CBSE board papers include application-based and value-based questions that go slightly beyond direct NCERT recall. Solving the NCERT exercises thoroughly gives you roughly 75–80% coverage; the remaining 20–25% requires practising previous year board questions and the chapter-wise important question banks provided on this page.

These questions are mapped to NCERT chapters, calibrated to CBSE's marking scheme, and reviewed for alignment with recent board exam patterns. Random internet questions often include topics outside the current syllabus or miss the specific phrasing style that CBSE examiners use. Chapter-wise question banks like this one ensure you practise what is actually tested.

Yes. Class 11 is the ideal time to build strong conceptual foundations for JEE. Chapters like Rotational Motion, Thermodynamics, Chemical Bonding, Mole Concept, and General Organic Chemistry covered in Class 11 carry significant weight in JEE Main Paper 1. Practising important board questions in Class 11 also strengthens the base for Class 12 topics.

Start with Physical Chemistry (Solutions, Electrochemistry, Chemical Kinetics) because these chapters have predictable numericals with high scoring potential. Then cover Inorganic Chemistry (d & f Block, Co-ordination Compounds, Metallurgy) which requires memorisation but follows patterns. Finish with Organic Chemistry (Aliphatic Hydrocarbons, Carboxylic Acids) which requires reaction mechanisms — leave sufficient time for multiple revisions of this section.