Consider the following statements: I. In diamond, each carbon atom is s p^3 -hybridised. II. Graphite has planar hexagonal layers of carbon atoms. III. Silicones being surrounded by non-polar alkyl groups are water repelling in nature IV. The order of catenation in group 14 elements is Si > C > Sn > Ge > Pb . The correct statements are

Step-by-step solution

(I, II) In diamond, hybridisation of carbon is s p^3 and graphite has planar hexagonal layer of C -atoms. The hybridisation of each C -atom in graphite is s p^2 . (III) Silicones are organo-silicon polymers formed from inorganic and organic monomer having chemical formula (R₂ SiO )_n , due to non-polar alkyl group, silicones are water repelling in nature. (IV) The catenation tendency in group 14 elements decreases due to decrease in element bond strength. Thus, the correct order is C >> Si > Ge Sn Hence, statement