Wednesday, April 1, 2015

Single Displacement Reaction ( Substitution Reaction )

                       In single displacement reaction one element replaced from a compound by another element. It is also known as substitution reaction or single replacement reaction.

Types  :
* cation replacement . ( positively charged ions mostly metals )
* anion replacement . ( negatively charged ions  mostly non-metals )

General Formula :
A     +      BC        ---->       AB     +       C
A     +      BC        ---->       AC     +       B

Examples:

Cl2  +  2NaBr       2NaCl   +   Br2
Cu   +   2AgNO3  Cu(NO3)   +   2Ag
Zn    +  2HCl      ZnCl2   +  H2
Fe    +  CuSO4     FeSO4     +   Cu
Zn    +  CuCl2      ZnCl2  +  Cu
Cl2   +   2KBr      2KCl   +  Br2

Br2   +   2KI        2KBr   +   I2

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