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
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 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?
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 of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
The volume of CO 2liberated at STP when 10 gm of 90% pure limestone strongly heated is
Water can dissolve more substances than any other liquid because
An alloy is:
