1.

Flocculation value of BaCl_(2) is much less than that of KCl for sol A and flocculation value of Na_(2)SO_(4) is much less than that of NaBr for sol B. The correct statement among the following is:

Answer»

Both the sols A and B are NEGATIVELY charged
SOL A is POSITIVELY charged and Sol B is negatively charged
Both the sols A and B are positively charged
Sol A is negatively charged and sol B is positively charged

Solution :In first case the GIVEN compounds have same anion but different cations having different charge hence they will precipitate negatively charged sol i.e., A.
In second case the given compounds have SIMILAR cation but differentcharge. Hence, they will precipitate positively charged sol i.e., B.


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