Non-metals are electro negative elements because they can form negative ions by gaining electrons. Metals are electro-positive.
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The mineral acids are those which are obtained from minerals and do not contain carbon. E.g., HCl, H₂SO₄, HNO₃, etc.
When it is heated, it disintegrates into sodium carbonate(Na₂CO₃), water and carbon dioxide.
Class 10th Science Session 2022-23 Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10 Science Terminal Exams MCQ Solutions
You must know that a real image equal in size to the object, is obtained when the object is placed at the centre of curvature in front of a concave mirror.