As the value of a solution increases
Important Questions on Acids, Bases and Salts
| Acid | Ionization constant, | ||
| A) | Formic acid | I) | |
| B) | Niacin | II) | |
| C) | Hypochlorous acid | III) | |
| D) | Hydrocyanic acid | IV) | |
The correct match is
When pH paper is dipped in solution its colour gets changed. In the following table colour of pH, paper is shown in Section A and pH values in section B. Select the correct answer.
| Section A | Section B |
| 1) Pink | a) 7 |
| 2) Light green | b) 2 |
| 3) Green | c) 10 |
| 4) Blue | d) 8 |
Four solutions A, B, C, and D have pH 2, 6. 7, and 13 respectively:
Which of the above solutions is a strong acid?
A teacher provided acetic acid, water, lemon juice, an aqueous solution of sodium hydrogen carbonate and sodium hydroxide to students in the school laboratory to determine the pH values of these substances using pH papers. One of the students reported the pH values of the given substances as and respectively. Which one of these values is not correct? Write its correct value stating the reason.
What is the pH scale? The pH value of fresh milk is . What would be the change in pH after its conversion into curd?
Answer the following:
On what does the strength of base depend?
