Tag: Class XI/XII

S-Block Elements - The elements of the first two groups of the periodic table. Groups 1 (Li, Na, K, Rb, Cs, Fr) and 2 (Be, Mg, Ca, Sr, Ba, Ra) are known as S-Block elements. Free online practice and preparation test for Class XI/XII, UGC, B.Sc Exams

Some Basic Concepts of Chemistry for class xi/xii, medical entrance, pharma, engineering entrance and other competitive and entrance exams