Chemistry
Grade-10
Easy
Question
Arrange the solutions in the ascending order of their pH values.
(A) Na2CO3
(B) KOH
(C) H2SO4
(D) NaCl
- CDAB
- ABCD
- CADB
- CABD
Hint:
We should know the common names for the given molecular formula of different salts. To compare the pH values we need to check from which acid and base they are made up.
The correct answer is: CDAB
The order for the solutions in the ascending order of their pH values is C D A B
- For sodium carbonate (Na2CO3), the pH value is 11 (Acidic)
- For potassium hydroxide (KOH- [strong base]), the pH value ranges from 10-13
- For sulfuric acid (H2SO4)- pH value is 1 (acidic)
- For sodium chloride (NaCl)- pH value is 7 (neutral)
- For sodium carbonate (Na2CO3), the pH value is 11 (Acidic)
- For potassium hydroxide (KOH- [strong base]), the pH value ranges from 10-13
- For sulfuric acid (H2SO4)- pH value is 1 (acidic)
- For sodium chloride (NaCl)- pH value is 7 (neutral)
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