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High ionisation energy:
The high ionisation energy of helium (24.6 eV) makes it a potential gas to be used in plasma source.
The nitrogen gas is generally not used as a plasma gas in plasma based atomic emission spectrometry because the excited nitrogen emits a complex band spectrum that can cause undesirable spectral interference.
Polychromator is a type of simultaneous spectrometer. It has a fixed diffraction grating monochromator and multiple 'exit slits' with associated photomultipliers. Every of the photomultiplier is optimized to detect a specified wavelength corresponding to an element of interest. The emission radiation from the source is dispersed by the grating and sent through different exit slits to be detected by appropriate photomultiplier tube.
Uses of Sucrose, Cane-sugar (1) Sucrose is used as a sweetening substance for several jams, syrups sweets, food preparations etc. (2) Sucrose is used in the making of sucros
Isomers, which vary in the rotation of the plane polarized light, are known as Optical Isomerism.
An 80°C aqueous solution containing 58 wt% sodium nitrate (NaNO 3 ) is fed to a combination crystallization-settling unit operating at 25°C. The unit separates crystals from the re
A number of ionic compounds e.g.Agcl , caF 2 BaSo 4 are insoluble in water. This is because: (1) Ionic compounds do not dissolve in water (2) Water has a high dielectri
Fractional distillation - Purification of organic compounds This method is used to separate a mixture of two or more miscible liquids that have boiling points close to each oth
By the action of CO on methyl alcohol Methyl alcohol and carbon monoxide react together under a pressure of 30 atmospheres and 200°C in presence of a catalyst cobalt octacarbon
Nucleophilic addition reactions (i) Carbonyl compounds give nucleophilic addition reaction along with those reagents which on dissociation give electrophile also nucleophile.
2 Kg of ice at -20 degree C is mixed with 5Kg of water 20 degree C in an insulating vessel containing negligible heat capacity. Measure the final mass of water remaining in the con
how to calculate the Fluoride ion concentration by ion meter?
Why magnesium does not impart any colour to Bunsen flame while calcium does
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