Question

The secondary valency of metal in the compound cocl3.4nh3

Answer 1

The secondary valency of metal in the compound is 6.

Explanation:

• According to Werner’s theory, metal ions contain both primary and secondary valences.

• Primary valence is the oxidation number of the metals.

• Secondary valence corresponds to the number of ions that are co-ordinated to central metal atom.

• It is fixed for all metal atoms.

• It is also known as the coordination number.

• The co-ordination number is calculated by the number of sigma bonds formed with the central atom.

• It is non-ionizable.

• The structure of the given compound which on dissociation produces 1 chloride ions.

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Answer 2

Answer:

the secondary valency is 6.

Explanation:

number of moles of AgCl precipitated per mole of the compounds with excess AgNo3 is 1.

Therefore number of ligands attached to central atom is 6 and thus the secondary valency becomes 6.

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