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Q. Define the Spectrochemical series?
Spectrochemical series helps us in renationalising the differences in the spectral properties of complexes. As the strength of the crystal field created by the ligands & increases, the frequency of absorption of light by the complex would also increase. Absorption of high frequency radiations means that light of lower frequency will be transmitted and will be responsible for the particular dour of the complex. It thus explains as to why the colours of a series of complexes of one particular metal ion, in the same oxidation state having the - same geometry, could be different. For example, the following four octahedral compounds of Co3 ion show different colours which are in accordance with spectrochemical series.
Complex D0 (em-1) colours
[Co (C2O4)3]3- 18,000 Dark green
[Co (H2O)6]3+ 18.200 Blue
[Co (NH3)6]3 + 22.900 Golden-brown
[Co (CN)6]3 - 33.500 Yellow
In polar covalent molecule, one atom gets positive charge and the other one takes negative charge as known as dipole.
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.
how is hydrogen peroxide storage in equatorial places (phil)? should it require 2-8 deg C? or ambient room? any special cabinets or equipment sof storing?
briefly explain laws of atoms with example
Chemical Changes During the processing and storage of foods, several chemical changes occur that involve the internal food components and the external environmental factors. T
Electrolysis of Water in the Presence of an Indicator • Place ~ 50 mL of the thawed cabbage juice in the same glass container (after rinsing) used in Step 1. • Insert the electro
Solvay process
The stability of a complex relies on 1. Nature of central ion: the word nature means the charge density on the central ion i.e. greater is the charge density or larger the c
explain the law of chemical combination
Uses of plaster of paris
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