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Hell Volhard-zelinsky reaction
In presence of Red P and diffused light or Hell Volhard-zelinsky reaction
Carboxylic acid comprising an α-hydrogen react with Cl2 or Br2 in the existence of a small amount of red phosphorus to provide chloro acetic acid. The reaction is termed as Hell Volhard-zelinsky reaction.
Time taken for an electron to complete one revolution in the Bohr orbit of hydrogen atom is: (1) 4 Π mr 2 / nh (2) nh/ 4Π 2 mr (3) nh/ 4Π 2 mr 2
how could i make better the project ion chart paper
scales and sludges
A tank having 100 kg of a 60% brine (60% salt) is ?lled with a 10% salt solution at the rate of 10 kg/min and 78°F.Solution is detached from the tank at the rate of 15 kg/min. Fin
how hubles reagent is prepared? if direct solution is not avaible
Certain basic properties of lakes and oceans are important to understanding how they "work". One of these is the density of the water, and its changes. Dense (or heavier) water wan
What is heat atomisatin? Solution : Heat of atomisation or enthalpy of atomisation is the energy required to dissociate one mole of a given substance into atoms.
If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an: (1) d -orbital (2) f -orbital (3) p -orbital (4)s-
How are formalin and trioxane related to methanol?
The electronic configuration of gadolinium (atomic no. 64) is: (1) [Xe]4s 8 5d 9 6s 2 (2) [Xe] 4s 1 5d 1 6s 2 (3) [Xe]4s 3 5d
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