Q.

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.

A. Al3+          B. Cu2+          C. Ba2+          D. Co2+          E. Mg2+

Choose the correct answer from the options given below:                  [2024]

1 B, A, D, C, E  
2 B, C, A, D, E  
3 E, C, D, B, A  
4 E, A, B, C, D  

Ans.

(1)

(A) Al3+ : Group III

(B) Cu2+ : Group II

(C) Ba2+ : Group V

(D) Co2+ : Group IV

(E) Mg2+ : Group VI