Question

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

• A. B, A, D, C, E
• B. B, C, A, D, E
• C. E, C, D, B, A
• D. E, A, B, C, D

Answer 1

The Correct Option is A

Step 1: Identify the Group Numbers of Each Cation

• Al³⁺: This is a Group III cation.
• Cu²⁺: This is a Group II cation.
• Ba²⁺: This is a Group II cation.
• Co²⁺: This is a Group VII cation.
• Mg²⁺: This is a Group II cation.

Step 2: Arrange Them in Increasing Group Number

The correct order based on increasing group number is:

• B (Cu²⁺) ¡ A (Al³⁺) ¡ D (Co²⁺) ¡ C (Ba²⁺) ¡ E (Mg²⁺)

Step 3: Conclusion

The correct answer is:

Option (1): B, A, D, C, E