Which of the following statements are correct?
a. Primary valencies are satisfied by negative ions while secondary valencies are satisfied by negative ion only. 
b. A metal ion has a definite number of secondary valencies around the central atom. 
c. Primary valencies are usually ionizable, while secondary valencies are non-ionizable
Choose the correct option:
1. a and b
2. a and c
3. b and c
4. a, b and c
Subtopic:  Werner’s Theory |
 79%
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital