Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.
4. What are ambident nucleophiles? Explain with an example. 5. Predict all the alkenes that would be formed by dehydrohalogenation of the following halides with sodium ethoxide in ethanol and identify ...
The Central Board of Secondary Education holds the annual board exam for class 12, which is regarded as the most important test for students. The question paper follows a pre-defined format every year ...