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P-nitrobenzenediazonium ion
The p-nitrobenzenediazonium ion, which is formed in the diazotization reaction, acts as the electrophile in an electrophilic aromatic substitution at carbon-3 of indole:
to study the presence of aroma taste,ph value and tannic acid of diffrent tea leaves
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
In the transition of Zn atoms to Zn ++ ions there is a decrease in the: (1) Number of valency electrons (2) Atomic weight (3) Atomic number (4) Equivalent weight A
The electronic configuration of calcium ion ( Ca2 + ) is: (1) 1s 1 , 2s 2, 2p 6 , 3s 2 , 3p 6 , 4s 2 (2) 1s 1 , 2s 2 , sp 6 , 3s 2 , 3p 6 , 4s 1
why alkanes are called paraffin
Q. Colloidal systems in foods? A colloidal system is a heterogeneous system. The material that forms the base of the system is called the dispersion medium or the continuous ph
Q. Explain about Extraction of metals? Extraction of metals is very often done by complex formation. For example, the cyanide process for the extraction of silver and gold is w
westron
Block diagram of atomic fluorescence spectrometry: The instrumentation for AFS consists of atom reservoir that might be a flame or a furnace etc., a basic source emitting the
What is the structure of a DNA molecule? Ans) The DNA molecule having of two complementary strands oriented in an anti-parallel fashion. Every strand is composed of nucleotides.
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