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प्रश्न
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?
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उत्तर
(i) Water of cystallization.
(ii) White.
(iii) Efflorescence.
(iv) Sodium chloride.
APPEARS IN
संबंधित प्रश्न
State one relevant observation for the following:
Anhydrous calcium chloride is exposed to air for some time.
Fill in the following blank:
Common salt is obtained from sea-water by the process of.............
Explain why chlorine is used for sterilising drinking water supply.
What happens when a concentrated solution of sodium chloride (brine) is electrolysed? Write the equation of the reaction involved.
Give the names and formulae of any two salts. Also name the acids and bases from which these salt may be obtained.
Define the following term:
Hygroscopy
Define the following term:
Water of crystallization
Name two carbonates which do not produce carbon dioxide on heating.
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
