reactivity
A student investigates the trend in reactivity of the halogens Cl 2 , Br2 and I2 .
The student is supplied with:
• solutions of Cl 2 , Br2 and I2 in cyclohexane (an organic solvent)
• aqueous solutions of the halides: NaCl , NaBr and NaI.
The colours of the halogen solutions in cyclohexane are shown below. Halogen
Cl2- Pale green
Br2- Orange
I2- Violet
Plan an experiment on a test tube scale that would show the trend in the reactivity of the halogens Cl2 , Br2 and I2 .
The student is supplied with:
• solutions of Cl 2 , Br2 and I2 in cyclohexane (an organic solvent)
• aqueous solutions of the halides: NaCl , NaBr and NaI.
The colours of the halogen solutions in cyclohexane are shown below. Halogen
Cl2- Pale green
Br2- Orange
I2- Violet
Plan an experiment on a test tube scale that would show the trend in the reactivity of the halogens Cl2 , Br2 and I2 .
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