Give One Example Each of Which Illustrates the Following Characteristics of a Chemical Reaction: Change of Colour - ICSE Class 8 - Chemistry
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Give one example each of which illustrates the following characteristics of a chemical reaction:
change of colour
When blue coloured copper sulphate reacts with hydrogen sulphide gas, a black coloured substance copper sulphide is formed.
`CuSO_4` + `H_2S` `→` CuS + `H_2SO_4`
(copper sulphate (hydrogen (copper sulphide ( sulphuric acid )
solution , blue) sulphide) black solid )
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Solution Give One Example Each of Which Illustrates the Following Characteristics of a Chemical Reaction: Change of Colour Concept: Types of Reactions - Combination.