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प्रश्न
Write a balanced equation for the preparation of the following salts:
Zinc carbonate from Zinc sulphate
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उत्तर
`ZnSO_4 + Na_2CO_3 -> Na_2SO_4+ZnCO_3`
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संबंधित प्रश्न
From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
On heating, this salt gives a yellow residue when hot and white when cold
Name three chemicals made from common salt (or sodium chloride).
Explain why chlorine is used for sterilising drinking water supply.
Which of the following salts will give an aqueous solution having pH of almost 7?
(a) NH4NO3
(b) NH4Cl
(c) CaCl2
(d) KCl
Give one example of a salt which gives an aqueous solution having:
pH less than 7
Taking sodium carbonate as an example, give the meaning of the following terms:
Anhydrous
State what would you observe when :
Washing soda crystals are exposed to the atmosphere.
Answer the questions below relating your answers only to salts in the following list: Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water?
- What name is given to the water in the compound copper sulphate-5-water?
- If copper sulphate-5-water is heated, anhydrous coppersulphate is formed. What is its colour?
- By what means, other than healing, could you dehydrate copper sulphate-5-water and obtain anhydrous coppersulphate?
- Which one of the salts in the given list is deliquescent?
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
Name the salt formed when sulphuric acid is added to sodium hydroxide and write its pH.
