Class 11

In molecular shape prediction, VSEPR (Valence Shell Electron Pair Repulsion) theory is important because based on the repulsions between the electron pairs around the central atom, it helps in predicting the three-dimensional shape of molecules. The 3D shape influences the molecule's chemical and physical properties including reactivity, polarity, and intermolecular forces.

Yes, the NIOS 10th board exam is equivalent to the CBSE, ICSE and other state boards. Students can join regular school for 11th after successful completion of NIOS 10th board exam. 

Though you can get admission to a Mass Communication course regardless of your stream in Class 11 and 12, Humanities or Arts is considered the best for Media courses. This stream has subjects like History, Geography, Political Science, Psychology, and Sociology that will help you gain a strong base in grasping human behavior, society, politics, etc.

The NCERT Exemplar provides great study material for preparing for the exam. It can help immensely in scoring high in the class 11 Physics exam. It helps in strengthening the concepts and improving understanding of how to solve complex problems. However, it is advised that it should be practiced alongside the NCERT textbook. The students can first read the theory from the NCERT book and then study from the NCERT Exemplar to apply the theory in solving questions. The Exemplar is a great tool for practice and revision.