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) successfully conducted the Class 10 Science Board Exam 2025 on February 20. The examination was held in a single shift, starting at 10:30 AM and ...
The Haryana Board of School Education (HBSE) has made the Science course materials for Class 10 available online for the 2025–2026 school year. This article contains a PDF version of the Haryana Board ...
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