MCQ
Saturated solution of $KNO _3$ used in salt bridge because :
- A$KNO _3$ has high solubility in water
- ✓The speed of $K ^{+}$and $NO _3{ }^{-}$is almost same
- CThe speed $K ^{+}$is more than that of $NO _3^{-}$
- DThe speed of $K ^{+}$is less than that of $NO _3$
