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Q. Discuss the EDTA method of determining hardness of water. OR What is hardness of Water? How it is determined by EDTA
1. A 50.0-L reaction vessel contains 1.00 mol N2, 3.00 mol H 2 , and 0.500 mol NH 3 . Will more ammonia, NH 3 , be formed or will it dissociate when the mixture goes to equilibrium
Which of the following compound has electrovalent linkage: (1) CH 3 Cl (2) Nacl (3) CH 4
fermiun (n = 100)
why does the sulphur has three different valency
An isostere is: (1) NO -2 and O 3 (2) No -2 and PO 3- 4 (3) CO 2, N 2 O, NO - 3 (4)Clo - 4 and OCN - Ans: NO -2
solubility of s-block elements to flame test
The electronic configuration (outermost) of Mn +2 ion (atomic number of Mn= 25 ) in its ground state is: (1) 3d 5 , 4s o (2) 3d 4 , 4s 1 (3
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
how to study nomenclature
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