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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.
This is an acid-catalyzed addition to the double bond much like hydration, except that an alcohol rather than water is the nucleophile that reacts with the carbocation intermediate
The electron density between 1s and 2s orbital is : (1) High (2) Low (3) Zero (4)None of these Ans:Zero
how to find atomicity of an element
For the n= 2 energy level, how many orbitals of all kinds are possible: (1) 2 (2) 3 (3) 4 (4) 5 Ans: 4
How to find stability of carbocations in benzene ring..??? How to find optically inactive isomers ??? (say of--C2H5Cl) How to find the weakest C-X (carbon-halogen bond in a benz
Ask questionfreezing point as exemple of colligative propertiy. #Minimum 100 words accepted#
the reaction of kmno4 nd c2o4 .why does it produce brown colour first
When are conditions right for harvesting a crop? When the crop is ready for harvest, will depend largely on weather conditions and the state of the market. When the deci
What is linear geometry The beryllium (Be) bears two groups, and thus has linear geometry. The H-Be-H bond angle is 180°.
Demonstrate the effect of foaming in preparation of cold and hot souffles? After undertaking this activity, you will be able to: • learn how to prepare hot and cold souffle,
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