Saved Bookmarks
| 1. |
Read the following and answer the questions: acid–base indicators can be used to distinguish between an acid and a base. Universal Indicator, which is a mixture of several indicators, shows different colours at different concentrations of hydrogen ions in a solution. Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red. i. What will be the action of solution A on litmus?a) Red b)blue c)green d) yellow ii. What will be the action of solution B on litmus?a) Red b)blue c)green d) yellow iii. What sort of reaction takes place when solution A reacts with solution B?a) Combination b)Displacement c)Decomposition d)Neutralisation iv. A substance which can give solution like A is:a) Sodium hydroxide b) Magnesium chloride c) Hydrochloric acid d) Nitric acid v. A substance which can give solution like B is:a) Calcium hydroxide b) Magnesium sulphate c) Hydrochloric acid d) Sodium carbonate |
|
Answer» a/ blueb/red3/ SOLUTION B turns universal indicator orange to red so it is acidic in nature and will TURN LITMUS red. |
|