What is the pH of a neutral solution?
Important Questions on Acid, Bases and Salts
What is the pH scale? The pH value of fresh milk is . What would be the change in pH after its conversion into curd?
State:
The difference between number of molecules in Gypsum and in Plaster of Paris.
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 |
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.
Four solutions A, B, C, and D have pH 2, 6. 7, and 13 respectively:
Which of the above solutions is a strong acid?
Answer the following:
On what does the strength of base depend?
