The tamil nadu class 11 common half-yearly exam answer keys for the 2025-26 academic session are essential for students to evaluate their performance across major subjects like mathematics, physics, chemistry, biology, and commerce. these answer keys are based on the official samacheer kalvi syllabus and provide step-by-step solutions for the objective, short answer, and long-form questions included in the district-wise papers. by reviewing these keys, students can identify their mistakes, understand the expected evaluation pattern of the dge, and refine their preparation for the upcoming march 2026 public examinations. you can download the subject-wise question paper pdfs and their corresponding answer keys by visiting the following link: https://school.careers360.com/boards/dge-tamil-nadu/tamil-nadu-11th-half-yearly-question-paper-2025-26