Question

Match List I with List II

LIST I Complex		LIST II Colour
A.	Mg(NH4)PO4	I.	brown
B.	K3[Co(NO2)6]	II.	white
C.	MnO(OH)2	III.	yellow
D.	Fe4[Fe(CN)6]3	IV.	blue

Choose the correct answer from the options given below:

• A. A-II, B-IV, C-I, D-III
• B. A-II, B-III, C-l, D-IV
• C. A-III, B-IV, C-II, D-I
• D. A-II, B-III, C-IV, D-I

Answer 1

The Correct Option is B

Here are the colors of the given compounds:

• \( \text{Mg(NH}_4\text{)PO}_4 \): White
• \( \text{K}_3[\text{Co(NO}_2\text{)}_6] \): Yellow
• \( \text{MnO(OH)}_2 \): Brown
• \( \text{Fe}_4[\text{Fe(CN)}_6]_3 \) (Prussian blue): Blue

Conclusion:

The colors are as listed above, with Prussian blue being the most notable due to its distinct deep blue color.