99 Percentile Qs Bank for JEE MainChemistryd and f Block Elements
Identify the correct statements from the following. (i) Eu ²⁺ and Yb ²⁺ are reducing agents. (ii) The electronic configuration of Pr ³⁺ is [ Xe ] 4 f^3 . (iii) Aqueous solution of LaCl ₃ is colourless.
Options
- A(i), (ii), (iii)
- B(i), (iii)
- C(i), (ii)
- D(ii), (iii)
Correct answer
B. (i), (iii)
Step-by-step solution
(a) Eu ²⁺ and Yb ²⁺ can lose electrons and form Eu ³⁺ and Yb ³⁺ . So, act as reducing agents. (c) in the aqua solution of LaCl ₃ it forms colourless solution.