CBSE 10th Science Answer Key, Paper Analysis 2025: The Central Board of Secondary Education (CBSE) conducted the Class 10 Science paper today, February 20. The students who had appeared for the CBSE ...

(a) Both A and R are true, and R is the correct explanation of A. (b) Both A and R are true, but R is not the correct explanation of A. (c) A is true, but R is false. (d) A is false, but R is true.

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 ...