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The electronic configuration of an element is 1s2, 2s2 2p6 3s2 3p6 3d5 4s1 . This represents its:
(1) Excited state
(2) Ground state
(3)Cationic form
(4) Anionic form
Ans: Ground state
The frequency of yellow light having wavelength 600 nm is: (1) 5.0x10 14 Hz (2) 2.5 x 10 7 Hz (3) 5.0x 10 7 Hz
What are ferrites? Ferrites are ceramic compounds having trivalent metal having three valence electrons iron and oxide of divalent element i.e. metals having two free electrons
Condensation with formaldehyde - Miscellaneous reactions Phenol condenses with formaldehyde (excess) in presence of sodium hydroxide or acid (H + ) for about a week to form a p
What are the basic physical and chemical properties of this group
What is the difference between a theory and a hypothesis? What is the difference between a hypothesis and a law? Is there a sequential move from one to another, amongst law, theory
An electronic transition from 1s orbital of an atom causes: (1) Absorption of energy (2) Release of energy (3) Both release or absorption of energy (4) Unpredictable
Quantitative analysis by Flame Photometry?
In ion estimation why we have to change the oxidation state of the Fe+3 ion. Ans) Because if iron is in +3 oxidation state it will be morestable then we get preferable product. s
can any one explain current galvanostatic coulometry ?
What are the advantages of graphite furnace AAS? tell the history of graphite furnace AAS
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