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Q. Test for hydrocyanic acid?
Hydrocyanic acid is present as an impurity in synthetic ethyl isothiocyanate, which is employed to make the flavour of mustard oil more pungent. The method is based on the reaction of hydrocyanic acid on the picric acid paper, which acquires a red colour in the presence of that acid.
After learning about the different tests for assessment of the quality of fats and oils, let us now apply this knowledge in assessing the quality of a given sample of fats and oils in experiments 1-5.
Which one of the following is not isoelectronic with O 2- : (1) N- 3 (2) F - (3) Tl + (4) Na + Ans: Tl +
what is perkin reaction?
The concentration of hydrogen ions in solution affects the enzyme activity. Every enzyme has maximal efficiency under an optimum pH. As pH is one of the factors for the denatura
about occurence,properties of the following metal copper.gold,mercury
Preparation of cycloalkane by perkins method
LIMITATION OF THIRD LAW OF THERMODYNAMICS
The wavelength of a spectral line for an electronic transition is inversely related to: (1) The number of electrons undergoing the transition (2) The nuclear charge of the a
What is the reliablitiy of redox titrations?
The present atomic weight scale is based on: (1) C 12 (2) O 16 (3) H 1 (4)C 13 Ans: C 12
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