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What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
phsiscal properties &chemical propertise
How do you explain in the absence of aldehyde group in the pentaacetate of D-glucose? Ans) when you react glucose with acetic anhydrate it forms pentaacetate with 5 OH grops it
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Question: Does the number of steps in a reaction process affect the enthalpy change of the overall reaction? Hypothesis: To compare experimental data to functionality of He
Q. Show General Characteristics of group16? The valence shell electronic configuration of Group 16 elements is ns 2 , ns 4 . These elements tend to gain inert gas configuration
The spectrum of He is expected to be similar to: (1) H (2) Li + (3) Na (4) He + Ans: Li +
When an electron jumps from lower to higher orbit, its energy : (1) Increases (2) Decreases (3) Remains the same (4) None of these Ans: Increases
notes of chemiluminesence, photophysical process,energy transfer in photochemical reactions
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