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प्रश्न
The pH values of three solutions A, B and C are given in the table. Answer the following questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
- Which solution will have no effect on litmus solution?
- Which solution will liberate CO2 when reacted with sodium carbonate?
- Which solution will turn red litmus solution blue?
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उत्तर
- Solution C with neutral pH has no effect on the litmus solution.
- Solution B with acidic pH liberates CO2 with sodium carbonate.
- Solution A with basic pH turns red litmus blue
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संबंधित प्रश्न
The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses.
Write a balanced equation for the preparation of the following salts:
Copper sulphate from Copper Carbonate.
The aqueous solution of one of the following salts will turn red litmus to blue. This salt is:
name two salts which are acidic.
Taking sodium carbonate as an example, give the meaning of the following terms:
Anhydrous
Name gases which has a sour taste.
Distinguish by a chemical test sodium carbonate and sodium sulphite.
The acid reacts with a base to form a neutral product called ______.
An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction of ______.
You are provided with the list of chemicals mentioned below in the box:
| Sodium hydroxide solution, copper carbonate, zinc, hydrochloric acid, copper, dilute sulphuric acid, chlorine, iron |
Using suitable chemicals from the list given, write a balanced chemical equation for the preparation of the salt mentioned below:
Sodium zincate
