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Atomic absorption spectrophotometry: Atomic absorption spectrophotometry (AAS) concerns the absorption of radiation by the atomised analyte element in the ground state. The at
The number of unpaired electrons in nitrogen is: (1) 1 (2) 3 (3) 2 (4) None of these Ans: 3
What are total variables and degrees of freedom of a system of two components, when the number of phases is one, two, three etc.? Ans: For two - component systems, degree of
similarities between the latter actinides and latter lanthanides
The order of reaction is the number of moles whose concentrations verify the rate of a reaction at a given temperature
what is ionisation energy
use and purpose 0
An element has the electronic configuration 1s 2 , 2s 2, 2p 6 , 3s 2 , 3p 2 . Its valency electrons are: (1) 6 (2) 2 (3) 3 (4)4 Ans: 4
The maximum number of electrons which each sub-shell can occupy is: (1) 2n 2 (2) 2n (3) 2 (2l+1) (4) (2l+1) Ans: 2
Chemical characterstics of carbonyl compounds Carbonyl compounds provide chemical reactions due to carbonyl group and α-hydrogens. Carbonyl compounds' Chemical reactions can
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