8. If Hund's rule is violated, then which among the following will become diamagnetic from paramagnetic (a) C (b) CN (c) N2 9. Which one is false in the following statements? (a) A catalyst is specific in its action (d) BN (b) A very small amount of the catalyst alters the rate of a reaction (c) The number of free vacancies on the surface of the catalyst increases on sub-division (d) Nickel is used as a catalyst in the manufacture of ammonia 10. In which of the following reaction 1 amine is not obtained as a major product. (A) R-C-NH, 0 NaOH + Br, NH/H (B) R-C-OH 0 (i) R-NH. (C) Ph-C-H (D) R-C=N- (ii) H./Ni LiAlH