Advertisements
Advertisements
प्रश्न
The pH values of five solutions A, B, C, D and E are given below:
A | 1 |
B | 5 |
C | 7 |
D | 11 |
E | 13 |
उत्तर
Solution A, with a pH value of 1, is strongly acidic.
APPEARS IN
संबंधित प्रश्न
What effect does the concentration of H+ (aq) ions have on the nature of the solution?
Indicator is a substance which shows different colours in acidic and basic solutions.
What is the effect of adding sodium hydroxide solution to these olfactory indicators?
Why should curd and other sour foodstuffs (like lemon juice, etc.) not be kept in metal containers (such as copper and brass vessels)?
What does the pH of a solution signify? Three solution A, B and C have pH values of 6, 4 and 10 respectively. Which of the solutions is highly acidic?
Someone put some universal indicator paper into vinegar. The pH is 3. What does this tell you about the vinegar?
The colour of methyl orange indicator in a solution is yellow. The pH of this solution is likely to be:
(a) 7
(b) less than 7
(c) 0
(d) more than 7
The pH values of five solutions A, B, C, D and E are given below:
A | 1 |
B | 5 |
C | 7 |
D | 11 |
E | 13 |
How will you prepare a china rose indicator?
Using the knowledge of acids and bases, write a secret message with the help of baking soda and beet root. Explain how it works.
(Hint: Prepare baking soda solution in water. Use this solution to write the message on a sheet of white paper with a cotton bud. Rub a slice of fresh beetroot over the message.)