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प्रश्न
A solution changes the colour of turmeric indicator from yellow to red. The solution is ______.
विकल्प
basic
acidic
neutral
either neutral or acidic
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उत्तर
A solution changes the colour of turmeric indicator from yellow to red. The solution is basic.
Explanation:
Basic solutions change the colour of turmeric indicator from yellow to red.
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संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A hydroxide which is highly soluble in water.
Give one example in the following case:
A basic oxide which is insoluble in water.
Give one example in the following case:
A hydroxide which is insoluble in water.
Salts are neutral.
What is the term defined by the following?
A base which is soluble in water.
Which among the following is not a base?
Match the important chemicals given in Column (A) with the chemical formulae given in Column (B)
| Column (A) | Column (B) |
| (a) Plaster of Paris | Ca(OH)2 |
| (b) Gypsum | CaSO4. 1/2 H2O |
| (c) Bleaching Powder | CaSO4.2H7O |
| (d) Slaked Lime | CaOCl2 |
Al(OH)3 & Zn(OH)2 are not alkalis.
A small amount of copper oxide was taken in a beaker and dilute hydrochloric acid was added with continuous stirring of the solution. Name the compound formed and state the colour of its solution. Write the balanced chemical equation for the reaction that occurs. Based on the reaction, state the nature (acidic/basic) of copper oxide.
