Answer the following questions : (a) The chemistry of the actinoids is more complex as compared to lanthanoids. Why ? (b) Why is $E^{\circ}$ for $\text{Mn}^{3+}/\text{Mn}^{2+}$ redox couple more positive ? (c) Why do transition metals form large numbers of complex compounds ? (d) How does acidified potassium permanganate solution react with $\text{Fe}^{2+}$ ions ? Write ionic equation. (e) Calculate the 'spin only' magnetic moment of a divalent ion of a metal M in aqueous solution. The atomic number of the metal M is 25.

Year	Paper Code	Set	Position
CBSE 2023	Series Other	Set 1	Question 35
CBSE 2023	Series Other	Set 1	Question 34
CBSE 2023	Series Other	Set 1	Question 33

• Step 1: Stating the fundamental formula / law statement (+1 Mark)
• Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
• Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)