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various concepts of acid and base
An atom or group of atoms, which verify the characteristic properties of the Substance it, is known as functional group.
The word "cereal" is derived from the name of the Roman grain or harvest goddess, Ceres. Cereals are the seeds of the grass family. These are the complex carbohydrates and consist
general principal for extraction of metals
Q. Use of Halides of Boron? Boron trihalides of the type BX3 exist for all the four halogens. Boron trifluoride can be prepared on a large scale by the fluorination of boric ox
physical properties
The first use of quantum theory to explain the structure of atom was made by: (1) Heisenberg (2 )Bohr (3) Planck (4) Einstein Ans: Bohr
In a Bohr's model of atom when an electron jumps from n= 1 to n= 3 , how much energy will be emitted or absorbed: (1) 2.15 x10 -11 erg (2) 0.19
#question.how you can prepare 5 normal solution of potassium nitrate in 2 litre volume?
Measure the combustion energies for the burning of 1 mol of propane and butane gas in air under these conditions. Calculate the efficiency of the combustion process as a functi
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