Question

The disodium salt of ethylenediamine tetra acetic acid can be used to estimate the following ion(s) in the aqueous solution

Solution

Correct option is

Both Mg2+ & Ca2+

Disodium salt of ethylenediaminetetraacetic acid (EDTA)

(say Na2H2Y.2H2O) 

Forms complexes with all metals with the exception of alkali metals.  

         

SIMILAR QUESTIONS

Q1

Of the following which is diamagnetic in nature?

Q2

The [Fe(CN)6]3– complex ion

Q3

50 ml of 0.2 M solution of a compound with empirical formula CoCl3.4NH3 on treatment with excess of AgNO3(aq) yields 1.435 g of AgCl. Ammonia is not removed by treatment with concentrated H2SO4. The formula of the compound is : 

Q4

When MnO2 is fused with KOH, a coloured compound is formed. The product and its colour are

Q5

 

In the process of extraction of gold, 

  

[x] and [y] are :

Q6

Which is diamagnetic and Which is paramagnetic amongest [Ni(CO)4], [Ni(CN)4]2– and [NiCl4]2–

Q7

Which of the following is non-conducting?

Q8

Aqueous solution of FeSO4 gives tests for both Fe2+ and  but after addition of excess of KCN, solution ceases to give test for Fe2+. This is due to of the formation

Q9

 

Which of the following statement(s) is/are correct with reference to Fe2+and Fe3+ ions?

(i) Fe3+ gives brown colour with potassium ferricyanide 

(ii) Fe2+ gives blue colour with potassium ferricyanide 

(iii) Fe3+ gives red colour with potassium thiocyanate

(iv) Fe2+ gives brown colour with ammonium thicyanate

Q10

[Cu(NH3)4]2+ has hybridisation and magnetic moment