Given below are two statements: Statement I: Primary valenc…

Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 12 PCB MCQ (Single Correct)

Given below are two statements:

Statement I: Primary valencies are non-ionisable and are satisfied by neutral molecules or negatively charged ligand s.
Statement II: Secondary valencies are ionisable and are satisfied by negative ions only.
In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I is correct but Statement II is incorrect.

Statement I is incorrect but Statement II is correct.

Both Statement I and Statement II are correct.

Both Statement I and Statement II are incorrect.

Text Solution

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The correct answer is:

By Werner, primary valency (oxidation state) is ionisable and satisfied by negative ions only; secondary valency (coordination number) is non-ionisable and satisfied by ligands (neutral or negative).

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