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Rayon - Semi Synthetic Polymers Rayon is a man made material which contains purified cellulose in the type of long fibres. Cellulose is reacted along with cold NaOH solution to
Role of organic solvents in atomisation: The organic solvents of low molar mass like alcohols, ethers, and ketones enhance the absorption peaks by increasing rate of aspiratio
energy of electron in hydrogen atom
decomposition of carbonates
Q. Explain Collision Theory? Ans. Why do some reactions take place faster than others? What actually happens in a chemical reaction? Consider a gaseous reaction of the typ
Uncertainty in position of a 0.25 g particle is 10 -5 . Uncertainty of velocity ( h = 6.6 x 10 -34 Js) is: (1) 1.2 x 10 34 (2) 2.1 x 10 -29 (3) 1.6 x 1
Q. What is a mixture experiment? Mixture experiment is an experiment in which food quality indices are assured to depend on the relative proportion of ingredients.
Uses of Resorcinol (a) Resorcinol is used as antiseptic and for creating dyes. (b) Resorcinol is also used in the medicine of eczema. 2, 4, 6-trinitroresorcinol is required
Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
A diluted polymer solution with a density of 1130 kg/m3 was extruded by a capillary tube of 3.5 mm internal diameter and 1 m long. The following results were contained at 25°C.
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