Which one of the following statements is correct?
The coordination number of EDTA is 6.
An alpha particle is a helium nucleus (2 protons + 2 neutrons) with no electrons at all, so the claim about its electron count is false; it carries a charge of +2, not electrons.
A beta particle is a fast-moving electron with charge -1, not +2, so that claim is also false.
Both carbon and silicon are group 14 elements that form covalent (not ionic) compounds because of their four valence electrons and tendency to share electrons, so that claim is false too.
EDTA (ethylenediaminetetraacetic acid) is a hexadentate chelating ligand — it binds a central metal ion through six donor atoms (two nitrogen and four oxygen atoms), giving it a coordination number of 6.
Hence, the correct statement is that the coordination number of EDTA is 6.
Similar Questions
With reference to fossil fuels, consider the following statements :
1. Coal is the most abundant fossil fuel and has high specific energy and energy density.
2. The action of heat and pressure changes plant matter in stages from anthracite to bituminous to lignite coal.
Which of the statements given above is/are correct?
Match List-I with List-II and select the correct answer using the code given below the Lists :
List-I
(Constituent of Paint)List-II
(Example)A. Pigment 1. Zinc oxide B. Extender 2. China clay C. Thinner 3. Naphthenate D. Drier 4. Turpentine Which among the following are, respectively, the correct oxidation numbers of chloride ion in Cl2O7, Cl2O, ClO3- and ClO2-?
Important Questions from Basic Concepts of Chemistry
- Which one of the following is a chemical change?
Which one of the following methods can be used to separate anthracene from a mixture of salt and anthracene ?
Which among the following are essential constituents of Portland cement?
20 g of common salt is dissolved in 180 g of water. What is the mass percentage of the salt in the solution?
Combination of one volume of nitrogen with three volumes of hydrogen produces
