Question

BEGINNERS DU
2
. Which of the following is true about metal-EDTA complex (if it is a 3d metal)
(1) The ratio of moles of metal & EDTA in complex is 1:6
(2) The ratio of moles of metal & EDTA in complex is 6:1
(3) The ratio of moles of metal & EDTA in complex is 1:1
(4) 3d metal ion cannot bonded with EDTA​

Answer 1

The EDTA will be sharing the ratio of 1 : 1 with the moles of metal.

• The EDTA is a shape and the shape is hexagonal.
• That means there are 6 lone pairs of molecules which are capable of sharing the bond.
• They are participating in the coordinate sharing of bonds.
• There are 6 lone pairs, each lone pair will make bond with the other 6 lone pairs.
• Therefore the ratio of mole of metal is 1 : 1
• So, the option C is correct.

Answer 2

Answer:

3

Explanation:

The EDTA will be sharing the ratio of 1 : 1 with the moles of metal. The EDTA is a shape and the shape is hexagonal. That means there are 6 lone pairs of molecules which are capable of sharing the bond.