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Question

In the reaction, BaCl2(aq)+K2SO4(aq)BaSO4(s)+2KCl(aq), which is not a spectator ion?

A
K+
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B
Cl
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C
Ba2+ and SO24
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D
Both A and B
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Solution

The correct option is B Ba2+ and SO24
Ions that are not involved in the formation of insoluble solid are called as spectator ions.

Therefore, Ba2+ and SO24 ions form insoluble solid.

Hence they are not spectator ions.

Option C is correct.

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