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CBSE Class 10 Answered

how can I identify compounds on the basis of their colour smells. Explain with examples
Asked by Sivaa Charan.M | 26 Apr, 2013, 06:23: PM
answered-by-expert Expert Answer
This you will have to remember somehow, as this is a complex chemistry. Few examples:
IonColor
Co2+ rose
Co3+ violet
Cr3+ violet
Cu2+ blue
Fe2+ pale green, pale violet
Fe3+ yellow-brown
Mn2+ pale pink
Ni2+ blue-green
 
 
Answered by | 27 Apr, 2013, 01:25: AM

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CBSE 10 - Chemistry
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an iron metal compound 'Y', after decomposition changes into a solid brown substance and evolve a gas having characteristic odour of burning sulphur. Write the chemical reaction associated with this observation.
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