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Acids, Bases And Salts
State the differences between acids and bases.
|
– |
Acids |
Bases |
| (i) | These are sour to taste. | These are bitter to taste. |
| (ii) | Acids turn blue litmus red. | Bases do not change the colour of blue litmus. |
| (iii) | Acids do not change the colour of red litmus. | Bases turn red litmus blue. |
| (iv) | With china rose indicator, these give dark pink colour. | Bases give green colour with china rose indicator. |
| (v) | Acids do not change the colour of turmeric indicator. | Bases turn the colour of turmeric indicator to red. |
Some More Questions From Acids, Bases and Salts Chapter
Explain why:
(a) An antacid tablet is taken when you suffer from acidity.
(b) Calamine solution is applied on the skin when an ant bites.
(c) Factory waste is neutralised before disposing it into the water bodies.
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.
Blue litmus paper is dipped in a solution. It remains blue. What is the nature of the solution? Explain.
Consider the following statements:
(a) Both acids and bases change colour of all indicators.
(b) If an indicator gives a colour change with an acid, it does not give a change with a base.
(c) If an indicator changes colour with a base, it does not change colour with an acid.
(d) Change of colour in an acid and a base depends on the type of the indicator.
Which of these statements are correct?
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Mock Test Series
Mock Test Series