I understand that you are new to this app and you are looking for help in finding important notes for Chapter 2 of your Science subject in Hindi language. I'll guide you on how to use this app and find the required information.

Using this app is quite simple and straightforward. Here's a step-by-step guide to help you navigate and find the important notes you are looking for:

1. Open the app: First, open the app on your device. If you haven't installed it yet, you can find it on the app store for your respective device.

2. Sign up or log in: If you are a new user, you may need to sign up by providing your email address or using your existing Google or Facebook account. If you already have an account, simply log in using your credentials.

3. Select your class: Once you are logged in, you will be directed to the home page. Here, you need to select your class, which in your case is Class 10.

4. Choose the subject: After selecting your class, you will be presented with a list of subjects. Look for the Science subject and click on it.

5. Find the chapter: In the Science subject, you will find a list of chapters. Look for Chapter 2 and click on it.

6. Select the language: Once you are on Chapter 2, you will have the option to choose the language of the notes. Look for the Hindi language option and select it.

7. Access the notes: After selecting the Hindi language, you will be able to access the important notes for Chapter 2 in Hindi. You can read them, download them, or even take quizzes to test your understanding.

By following these steps, you should be able to find the important notes you are looking for in Hindi language. Remember to explore other features of the app as well, such as practice questions, sample papers, and additional study materials. It's a great tool to enhance your learning experience.

I hope this guide helps you in using the app effectively. If you have any further questions or need assistance with any other topic, feel free to ask.