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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.
The radius of electron in the first excited state of hydrogen atom is: (1) a 0 (2) 4a 0 (3) 2a 0 (4) 8a o
interconversion of phenol to meta-bromo phenol
what is the relation with energy?
Natural rubber: Natural rubber is obtained by making small incisions on the bark of certain types of trees, like "Have a brasiliensis" and "Ganynle". White milky liquid substance
The electronic configuration of chromium is: (1) [Ne]3s 2 , 3p 6 , 3d 4 , 4s 2 , (2) [Ne]3s 2 , 3p 5 , 3d 4 , 4s 1 , (3) [Ne]3s 2 , 3p 6 , 4s 2 ,
Drugs - Chemistry in Action Drugs may be a single chemical atom or a combination of two or more dissimilar substances. An perfect drug should assure the following needs, Whi
1. Express 95 mg/l of Ca 2+ as milligrams per liter of CaCO 3 . 2. Express 221 mg/l of Ca(HCO 3 ) 2 as equivalents per liter of CaCO 3 . 3. Determine the concentration o
The f-block elements contains of two series of inner transition elements i.e. lanthanoids (the fourteen elements subsequent lanthanum) and actinoids (the fourteen elements subseque
the diagnal relationship in periodic table
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