It is the intention to give physical properties of elements in a Group and then attempt to correlate these with the gradation in their chemical properties. Explanations are sought for the variation in properties. The emphasis is on how the unifying principles of Chemistry help in understanding and interpreting what is known and how reasonable predications can be made about what is yet unknown. Chemistry has been presented as a logical combination of fact and theory and no attempt has been made to present a mass of unrelated facts. Organic Chemistry is presented as a unified systematic subject.
Emphasis is laid on the type rather than on individual members.
Influence of electronic effects, and bond types is made out. The idea is to present Organic Chemistry as a compact unit and stimulate the interest of the student to further study and inquiry. The new scheme proposed will introduce a single-science stream comprising Biology, Chemistry, Physics and Mathematics. The Curriculum in Chemistry for the new proposed single-science stream at the Higher Secondary level follows the general approach employed hitherto. It has been further improved and rationalised.