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Q. What are natural or synthetic food colours? Food in raw state has a natural colour, which is associated with the characteristics of that food. In the processing, preservatio
Real life example on ph determination and Ksp
1. The pH of a 0.02 M solution of an acid was measured as 4.6. a) What is the [H + ] of the solution? b) What is the acid dissociation constant K an
What are the basic physical and chemical properties of this group
solved exercises
Q. Show Experimental observations of werners theory? Werner showed that his postulates are consistent with experimental observations. He made use of basically three kinds of ex
Q. What do you mean by Permissible level ? To regulate and enforce safety about the use of these synthetic colours and dyes PFA, 1954 has covered their use in part IV comprisin
Solubility of urea
Which one of the following explains light both as a stream of particles and as wave motion: (1) Diffraction (2) γ= h/p (3) Interference (4) Photoelectric effect
Q. Halides of Boron and Aluminium? All the elements of Group 13 form binary halides. All the four trihalides of each element are known, with one exception. The compound Tl13 is
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