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प्रश्न
Distinguish by a chemical test sodium hydroxide solution and ammonium hydroxide solution.
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उत्तर १
These salts can be distinguished by using metal cations like calcium. When we add calcium salt to sodium hydroxide and ammonium hydroxide, then a white curdy ppt. is formed only in the case of sodium hydroxide.
उत्तर २
With sodium hydroxide solution Ca(NO3)2 sol. gives a fine, milky white precipitate of Ca(OH)2 which is insoluble in excess of NaOH.
\[\ce{Ca[NO3] + 2NaOH -> \underset{milky white ppt}{2NaNO3} + Ca[OH]2\downarrow}\]
Whereas ammonium hydroxide solution with calcium nitrate solution Ca[NO3]2 has no reaction.
संबंधित प्रश्न
Complete and balance the following chemical equations:
`NaCI (aq) + H_2O (l) `
What will be the colour of litmus in an aqueous solution of ammonium chloride salt?
Name a salts whose solubility increases with temperature.
The pH values of three solutions A, B and C are given in the table. Answer the folloiwng questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
Which solution will have no effect on litmus solution?
Define the following term:
Water of crystallization
Answer the following questions below, relating your answers only to salts in the following list:
Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water.
(i) What is the name given to the water in the compound copper sulphate-5-water?
(ii) If copper sulphate-5-water is heated, the water is driven off leaving anhydrous copper sulphate. What is the colour of anhydrous copper sulphate?
(iii) By what means, other than heating, you can dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate?
(iv) Which one of the salts in the given list is deliquescent?
Write any five uses of salts.
Many salts absorb water from the atmosphere. This property is called:
What are hygroscopic substances?
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:
Ferric chloride
