What are complex ions used for?

What are complex ions used for?

These are used to form co-ordinate bonds with the metal ion. All ligands are lone pair donors. In other words, all ligands function as Lewis bases.

Is AgCl a complex ion?

That is, AgCl dissolves in 1.0 M KCl to produce a 1.9 × 10−5 M solution of the AgCl2− complex ion. Thus we predict that AgCl has approximately the same solubility in a 1.0 M KCl solution as it does in pure water, which is 105 times greater than that predicted based on the common ion effect.

Does Zinc form complex ions?

Zinc(II) ion forms complex ions readily.

What are polydentate ligands explain one example?

Polydentate ligands range in the number of atoms used to bond to a central metal atom or ion. EDTA, a hexadentate ligand, is an example of a polydentate ligand that has six donor atoms with electron pairs that can be used to bond to a central metal atom or ion.

Why are complex ions formed?

A complex ion forms from a metal ion and a ligand because of a Lewis acid–base interaction. The positively charged metal ion acts as a Lewis acid, and the ligand, with one or more lone pairs of electrons, acts as a Lewis base.

Why is the hexa aqua copper complex ion is blue in colour?

Copper(II) ions in solution absorb light in the red region of the spectrum. The light which passes through the solution and out the other side will have all the colours in it except for the red. We see this mixture of wavelengths as pale blue (cyan).

How does cisplatin act as anticancer?

Cisplatin binds to the N7 reactive center on purine residues and as such can cause deoxyribonucleic acid (DNA) damage in cancer cells, blocking cell division and resulting in apoptotic cell death. The 1,2-intrastrand cross-links of purine bases with cisplatin are the most notable among the changes in DNA.

How does cisplatin prevent DNA replication?

Cisplatin prevents DNA replication in cancer cells by a ligand replacement reaction with DNA in which a bond is formed between platinum and a nitrogen atom on guanine.

Can zinc form complex ions?

Where is zinc found on Earth?

Zinc is found in several ores, the principal ones being zinc blende (zinc sulfide) and calamine (zinc silicate). The principal mining areas are in China, Australia and Peru.

What is a zinc complex?

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Why is EDTA polydentate ligand?

EDTA is a polydentate ligand have flexidentate character in which four Oxygen atoms and two Nitrogen atoms form coordinate bonds with the central metal atom or ion. Therefore, there are six donor atoms present in EDTA. Hence, EDTA is a hexadentate ligand. Its denticity or multiplicity is 6.

Is oxalate a polydentate ligand?

Oxalate ion is a bidentate ligand even though it contains four O atoms which have lone pairs of electrons. In this complex, two oxalate ions are bonded to the Ni atom.

Why is Mn2 pale pink?

It is occurred by an electron come from the p orbital of Oxygen is gone to d orbital in Mn. So the energy is absorbed from the visible light. P – d transitions are occurred and is fully allowed.