4.Question: Consider the reactions of dilute hydrochloric acid with the following metals: Aluminium, Copper, Iron, Magnesium and Zinc. The correct observation is: (A) Most vigorous reaction with ...

The Central Board of Secondary Education(CBSE) will conduct the Secondary School Main Examinations (Class 10th Board Exam) from February 17 to March 10, 2026. The board exams will commence on February ...

CBSE Class 10th Science Answer Key 2025: The CBSE Class 10 Science Exam 2025 was held on February 20, 2025. As per the initial student reactions, the paper was of moderate difficulty level. To help ...