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Q. Show Uses of Sulphur?
Sulphur is used in the manufacture of sulphur dioxide, sulphuric acid, and gunpowder. Match. fertilisers, drugs, bleaching agents, leather and other products. Large quantities of elemental sulphur are used in the vulcanisation of rubber, in certain ointments and medicines. Sulphuric acid of varying concentrations is used in the manufacture of fertilisers, paints, pigments, dye-stuffs, fibres, plastics, detergents and soaps. It also finds its use in refining petroleum. In recent years nitrogen-sulphur compounds have aroused considerable interest because of their superconducting properties. A binary polymer, (SN),, exhibits metallic characteristics and becomes superconducting below 0.33 K.
Mordant dyes: These dyes comprise no natural affinity for the fabric and are applied to it along with the help of specific additional substances termed as mordants. A mordant
Q. What are Independent and dependent variables? An experiment is a set of controlled explanation that tests a hypothesis. In a research a scientist will set up and change on
Q. Show the basic stucture of Esters? Ans. Esters have the general formula RCOOR'. Both R and R' are alkyl groups. Esters have the ester functional group: Anima
complete reaction
What kind of relation is there between them and the force constants of vibration that you have calculated? The enthalpies of vaporization of carbon and silicon are 717 kJmol -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.
Explain Lewis base and a nucleophile Species A is a. Carbon B is an electrophile. Carbon C is a leaving group towards carbon B but also a nucleophile towards carbon D. Carbon D
Artificial process for manufacture of Petrol or gasoline (a) Cracking, (b) Synthesis
A 100 gal tank contains 10 lb of water. The tank is filled by two inlet streams, one of pure water and one of pure ethanol. The flow rate of both streams is 10 gal/min. Calculate t
Q. A sample of water analysis was found to contain temporary magnesium hardness 25 mg/L. Permanent magnesium chloride hardness 15 mg/L and permanent calcium sulphate hardness 20
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