Q. Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI. A. $Al^{3+}$ B. $Cu^{2+}$ C. $Ba^{2+}$ D. $Co^{2+}$ E. $Mg^{2+}$ Choose the correct answer from the option given below:
A) E, C, D, B, A
B) E, A, B, C, D
C) B, A, D, C, E
D) B, C, A, D, E
Explanation
[Solution by Claude - not from source] $Cu^{2+}$: group II; $Al^{3+}$: III; $Co^{2+}$: IV; $Ba^{2+}$: V; $Mg^{2+}$: VI. Order B, A, D, C, E. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.