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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.
Atomic spectroscopy: Atomic spectroscopy is the oldest instrumental method of elemental analysis. The origin of these methods dates back to the times of Bunsen and Kirchhoff i
Preparation of cycloalkane by perkins method
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Chloroform
Explain in words why hydroboration leads to anti-Markovnikov addition of hydrogen whereas most electrophilic addtions to alkenes result in Markovnikov addition.
Q. Place these types of light in order from largest to smallest wavelength. Blue light, x-rays, gamma rays, microwaves, green light? Largest wavelength microwaves green l
introduction to esters ,preparation, proprties, and their uses in daily life
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