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Uses of pyrogallol
(a) As a developer in photography.
(b) As a hair dye.
(c) In medicine of skin diseases like eczema.
(d) For absorbing none reacted oxygen in gas analysis.
What are photochemical reactions? Explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine gas.
what is the relation between gram atomic mass and avogadro''s no ?
scales and sludges
Chromatography - Purification of organic compounds This is a modern technique employed for the separation of mixtures into its components, purification of compounds and as well
Consider a 2-component system of cyclooctane(1) and styrene(2) at 350 °C. Both component can be well described with the Soave-Redlich-Kwong equation of state in the mixed vapor and
#ques(a) Given the values below, calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical po
In the following which substance will have highest boiling point: (1) He (2) CsF (3) NH 3 (4) CHCl 3 Ans: CsF
What are the compounds having at least single chiral centre (asymmetric carbon atom)? Draw their structural formulae (line-bond structures) with all chiral centres marked by an ast
How to prepare preparative TLC plates and how to separate compound by preparative TLC
Classify each reaction and give the name of all the chemical formula involved for each number. 1. Na2CO3(s) + SiO2(s) ? Na2SiO3(l) + CO2(g) 2. 2 Mg(NO3)2(s) ? 2 Mg(NO2)2(s) + O2
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