A certain solution does not change the colour of any indicator.This solution is most likely to be:
a.vinegar solution
b.baking soda solution
c.common salt solution
d.washing soda solution
Answers
Answer:
Common salt solution....
Answer:
State differences between acids and bases?
Answer:
Acids
Bases
1. Its taste is sour.
Its taste is bitter.
2. It turns blue litmus paper to red.
It turns red litmus paper to blue.
3. It contains hydrogen ion (H+).
It contains hydroxyl ion(OH-)
4. It doesn’t feel soapy to touch.
It feels soapy to touch.
5. Examples: Curd, lemon juice and
Vinegar.
Examples: Baking soda, Soap and lime
water.
Question 2:
Ammonia is found in many household products, such as window cleaners. It turns red litmus blue. What is its nature?
Answer:
Ammonia turns red litmus to blue so it is basic in nature.
Question 3:
Name the source from which litmus solution is obtained. What is the use of this solution?
Answer:
Litmus is extracted from lichens. It has a mauve (purple) colour in distilled water.
When added to an acidic solution, it turns red and when added to a basic solution, it turns blue. So, it is used to test the acidic or basic nature of solutions.
Question 4:
Is the distilled water acidic/basic/neutral? How would you verify it?
Answer:
Distilled water is neutral by nature. We can verify it by litmus test. Water does not change the colour of either red or blue litmus.
Question 5:
Describe the process of neutralisation with the help of an example.
Answer:
When an acid and base solutions are mixed in suitable amounts both the solutions neutralise the effect of each other and a new substance is formed .
This process is known as neutralisation. Salt and water are produced in this process with the evolution of heat.