Consider the following statements. (i) d-block elements composed of 3d series, Sc to Zn (4th period). (ii) 4d series composed of Y to Cd.(iii) 5d series composed of La, Hf to Mercury. Which of the above statements is/are incorrect (a) (i) and (iv) (b) (i), (ii) and (iii) (c) (iii) and (iv) (d) (iv) only(iv) d-block elements composed of 4d series Y to Cd.

Consider the following statements. (i) d-block elements composed of 3

1.	Consider the following statements. (i) d-block elements composed of 3d series, Sc to Zn (4th period). (ii) 4d series composed of Y to Cd.(iii) 5d series composed of La, Hf to Mercury. Which of the above statements is/are incorrect (a) (i) and (iv) (b) (i), (ii) and (iii) (c) (iii) and (iv) (d) (iv) only(iv) d-block elements composed of 4d series Y to Cd.
Answer» (b) (i), (ii) and (iii)