There are several online quizzes and tests available for the Vasant Book for Class 6 CBSE. These resources can be helpful for students to assess their understanding of the topics covered in the book and practice for exams. Here are some details about these online quizzes and tests:

1. EduRev:
- EduRev is a popular online platform that offers a wide range of educational resources, including quizzes and tests for various subjects and classes.
- They have a specific section dedicated to CBSE Class 6 where students can find quizzes and tests based on the Vasant Book.
- The quizzes are designed to cover different chapters and topics from the book, allowing students to test their knowledge and identify areas for improvement.
- EduRev provides a user-friendly interface and detailed explanations for each question, helping students understand the concepts better.

2. CBSE Guide:
- CBSE Guide is another online platform that provides study materials and resources for CBSE students.
- They offer quizzes and tests based on the Vasant Book for Class 6 CBSE.
- The quizzes are designed to assess students' understanding of the chapters and topics covered in the book.
- CBSE Guide also provides instant feedback and explanations for each question, helping students learn from their mistakes.

3. TopperLearning:
- TopperLearning is a comprehensive online learning platform that offers study materials, video lessons, and assessments for CBSE students.
- They provide quizzes and tests based on the Vasant Book for Class 6 CBSE.
- The quizzes are designed to test students' knowledge and understanding of the concepts discussed in the book.
- TopperLearning provides detailed solutions and explanations for each question, allowing students to learn from their mistakes.

In conclusion, there are several online platforms such as EduRev, CBSE Guide, and TopperLearning that offer quizzes and tests specifically designed for the Vasant Book for Class 6 CBSE. These resources can be beneficial for students to assess their understanding, practice for exams, and improve their knowledge of the topics covered in the book.