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Larger is the size of anion, greater will be the covalent character. Students can also download the ncert textbooks solutions in pdf for class 12 maths. The ability of a cation to polarise the nearby anion is called its polarising power and the tendency of an anion to get distorted or deformed or polarised by the cation is called its polarisability. According to this rules an ion will be formed most easily when 1. Books of all the subjects for classes 1 to 12 are available for download. Apart from it, there are various app as well as website which provide it absolutely free. Also, download ncert books for class 7 english in pdf form. Jul 14, 2016 the trend of attaining covalent character by ionic compounds as a consequence of polarisation may be generalized in terms of fajan s rule. Same energy of combining orbitals the atomic orbitals combining to form molecular orbitals should have comparable energy. Formulated by kasimir fajans was used to predict whether a chemical bond will be covalent or ionic, which depends on the charge on the cation. The ncert, in order to augment the availability of ncert books for the students of cbse affiliated schools, has called for indent through their website for purchase of books as per the requirement assessed by the schools. Ncert solutions for class 12 physics free pdf download.

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