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An ion has 18 electrons in the outermost shell, it is:
(1) Cu+
(2) Th4+
(3) Cs+
(4) K+
Ans: Cu+
explain galvanic potentiol differnce
Q. What do you mean by Isotopes? Isotopes and mass number although all atoms of an element have the same number of protons most elements have atoms with different numbers of ne
how we can understand a katod in solution
The total number of valence electrons in 4.2 gm N-3 of ion is ( NA is the Avogadro''s number): (1) 1.6NA
Matter is anything that has mass and takes up space. The term matter refers to all the materials, or "stuff," making up the universe. Everything you see around you is matter. The c
how to calculate equevalent mass
Coupling reaction - Miscellaneous reactions Phenol couples along with benzene diazonium chloride in existence of an alkaline solution to make a red dye (p-hydroxy azobenzene).
Q. Show the Occurrence of the f-block element? Apart from promethium which is unstable and is found in traces in uranium ores, all the lanthanides usually occur together. Altho
Acetic acid (HAc) is generated by the addition of 10% excess sulfuric acid to calcium acetate (Ca(Ac) 2 ) (stream 1 compared to stream 3). The flow diagram is shown below.
The magnetic quantum number for an electron when the value of principal quantum number is 2 can have: (1)3 values (2) values (3)9 values (4)6 values Ans: 3 values
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