Give examples on the topic: active halogen displaces less active from its salts.

One of the chemical properties of halogens is that the more active halogens displace the less active ones from their salts. The activity of halogens increases from bottom to top, as the period number decreases.

2NaBr + Cl2 = 2NaCl + Br2;

2KI + Br2 = 2KBr + I2;

2NaI + Cl2 = 2NaCl + I2.



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