Advertisements
Advertisements
प्रश्न
Three liquids are given to you. One is hydrochloric acid, another is sodium hydroxide and the third is a sugar solution. How will you identify them? You have only turmeric indicator.
Advertisements
उत्तर
Test the liquids one by one by placing a few drops of the three liquids on the turmeric indicator.
- If yellow colour is obtained then the liquid will be hydrochloric acid.
- If red or pink colour is obtained then it will be sodium hydroxide.
- If there is no change then it is a sugar solution.
APPEARS IN
संबंधित प्रश्न
You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?
Fresh milk from cows has a pH of 6. So how does the pH change when this milk is turned to curd? Explain your answer.
Name two olfactory indicators. What is the effect of adding sodium hydroxide solution to these olfactory indicators?
Name the scientist who developed the pH scale.
The pH of soil A is 7.5 while that of soil B is 4.5. Which of the two soils, A or B, should be treated with powdered chalk to adjust its pH and why?
The daffodil plants grow best in a soil having a pH range of 6.0 to 6.5. If the soil in a garden has a pH of 4.5, which substance needs to be added to the soil in order to grow daffodils?
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
- What will be the action of solution A on litmus?
- What will be action of solution B on litmus?
- Name any two substances which can give solutions like A.
- Name any two substances which can give solutions like В.
- What sort of reaction takes place when solution A reacts with solution В?
The salt whose aqueous solution will turn blue litmus to red is ______.
Hibiscus flower is an example for natural indicator.
Which one of the following can be used as an acid- base indicator by a visually impared student?
