Hello,

U can find ur important questions in careers360 website. This will provide u pyq's and thos is also very help full. U can visit the site and download ur papers.

Website:

Visit and download

Here's the important topics also u have to focus on class 10th.

Mathematics:

°chapter 3: algebra - practice solving quadratic equation and problems of graphs

° chapter 6: Trigonometry- Very important! You must practice proving indentities and problems on "Heights and Distance".

° chapter 2: Numbers & Sequencs- Focus on arithmetic progression (AP). Practice finding the 'n'th term and the sum of 'n' terms.

° chapter 4: Geometry- you must learn the proofs for theorem, and the tangent-chord theorem.

° chapter 7: Mensuraruon - practice problems on finding the surface area and volume of combined solids (like a cone on a cylinder?).

° chapter 8: Statics & probability- know how to calculate standard deviation and sopve probability sums.

Science:

1. Optics: How lenses(convex & cancave) work. Practice drawing ray diagrams and using the lens formula.

2. Electricity:Very important chapter! Practice numerical on Ohm's Law, series & parallel resistors, and electric power/heat.

3. Nuclear physics: Understand radioactivity (alpha, beta, gamma rays) and the difference between nuclear fission and fusion.

Chemistry:

1. Periodic Classification: Know mendeleev's and the modern periodic table. Learn the trends (like atomic size).

2. Carbon and it's compounds:Most  Important! Learn IUPAC naming, functional groups (like alcohol, carboxylic acid), and the properties of Ethanol and ethanoic acid.

3. Solution : practice numericals on concentration (like mass percentage amd Molarity).

Biology:

1. Heredity: Understand mendel's experiments and how sex is determined in humans.

2. Life processes:

* plants: how they transport water & food(xylem, pheloem) and photosynthesis.

* humans: structure and function of the heart, and the kidney (nephron).

3. our environment: food chains, food webs, and environmental issues like ozone depletion.

Social science:

History.

* The Indian National movement: focus on the gandhian era. Also, know the role of tanil nadu in the freedom struggle.

* world wars: causes and effects of world War I and II.

Hope this will help u And must read ncert and practice pyqs always.

All the best for ur exams.