Which statements about the carborane .9 * ? anion [B9C2H11]2- is correct (1) (1 ) With nickel(II), it gives bis(dicarbollide)nickel(II) complex 2- is called dicarbollide[B9C2H11] and it has nido structure Bis(dicarbollide) complexes undergo reversible redox reactions With iron(11), it gives [Fe(B9C2H11)2] just like ferrocene [Fe(C5H5)2] All the above are correct