Answer / suresh

In IR spectroscopy for the preparation of pellet we use KBR
Because kBR is ir inactive compound,and it catches moisture
in sample, and it does not give any peaks in ir spectra

Answer / falguni patel

Dipole moment change means change in magnitude of +ve and -ve charge between two bonded atoms. To alter the dipol moment stretching or bending vibration is necessary. There is no these types of vibration is found.

Answer / ramesh yadav

In IR spectroscopy for the preparation of pellet we use KBR
Because kBR has no absorbance in IR region

Answer / b srinivasu

Kbr and sodium chloride cells are alkyl halides so its donot react and do not exhibit any absorbance spectrum

Answer / mahesh

in IR kbr shows 100% trasmisson.so we prepare pallet with sample than it shows only spectrum of sample.also kbr is inactive in IR.

Answer / ajeet pratap singh

KBr is IR inactive in nature so it use in pellet preparation.
KCl also can be use.

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