Question

when juile tested solutions " A " , " B " . " C " , " D " and " E " using a universal indicator , she got pH values of 9,7.1.13. and 6 respectively . On this basis can you tell which solution ( a ) is a weak acid ( b ) is a weak hase (c) is a strong acid (d) ls a strong base ( e ) Is neutral​

Answer 1

Answer:

1. E(pH=6) is weak acid
2. A(pH=9) is a weak base
3. C(pH=1) is a strong acid
4. D(pH=13) is a strong base
5. B(pH=7) is a neutral solution

NOTE: any chemical substance which has pH=7 is a neutral substance.

Any chemical substance which has pH>7 acts as a base. Remember basicity increases with rise of pH.

Any chemical substance which has pH<7 acts as a acid. Remember acidity increases with decrease in pH.

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