Identifying and correcting grammatical errors is an important skill that students should possess in order to excel in the CBSE Class 10 English Grammar exam. It is highly likely that the exam will include questions that require students to identify and correct grammatical errors. In such questions, students are usually provided with a given sentence or passage where certain errors are intentionally inserted. Students are then required to identify these errors and correct them accordingly.

Here is an explanation of how these types of questions may be presented in the CBSE Class 10 English Grammar exam:

1. Question Format:
- The question may consist of a given sentence or passage where errors are present.
- Students may be asked to identify the errors and rewrite the sentence correctly.

2. Types of Errors:
- Grammatical errors can include mistakes in subject-verb agreement, verb tense, pronoun usage, use of articles, prepositions, etc.
- Errors in punctuation, capitalization, spelling, and sentence structure may also be included.

3. Identification of Errors:
- Students should carefully read the given sentence or passage and identify any grammatical errors.
- They should pay attention to the subject-verb agreement, verb tense consistency, pronoun-antecedent agreement, and other grammatical rules.

4. Correction of Errors:
- Once the errors are identified, students should correct them by applying the appropriate grammar rules.
- They should ensure that the sentence or passage is grammatically correct, coherent, and conveys the intended meaning.

5. Tips for Preparation:
- Develop a strong foundation in grammar rules and concepts.
- Practice identifying and correcting grammatical errors through exercises and sample questions.
- Review common grammatical mistakes and learn how to avoid them.
- Read extensively to improve your understanding of correct grammar usage.

In summary, it is highly probable that the CBSE Class 10 English Grammar exam will include questions that require students to identify and correct grammatical errors. By developing a solid understanding of grammar rules and practicing regularly, students can effectively tackle these questions and achieve success in their exams.