मराठी

How many molecules of water of crystallisation (per formula unit) are present in: Copper sulphate crystals

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प्रश्न

How many molecules of water of crystallisation (per formula unit) are present in:

Copper sulphate crystals

अति संक्षिप्त उत्तर
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उत्तर

Copper sulphate crystals contain five molecules of crystallisation in one formula unit. The chemical formula is CuSO4.5H2O (copper sulphate pentahydrate).

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पाठ 2: Acids, Bases and Salts - Exercise 3 [पृष्ठ १२४]

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लखमीर सिंह Chemistry Part 2 [English] Class 10
पाठ 2 Acids, Bases and Salts
Exercise 3 | Q 82. (a) | पृष्ठ १२४

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संबंधित प्रश्‍न

Write a balanced equation for the preparation of the following salts:

Copper sulphate from copper carbonate.


Write a balanced equation for the preparation of the following salt:

Zinc carbonate from zinc sulphate.


Rock salt is mined just like ______.


Complete and balance the following chemical equation:

\[\ce{NaCl_{(aq)} + H2O_{(l)} ->[Electricity]}\]


Complete and balance the following chemical equation:

\[\ce{NaCl + NH3 + H2O + CO2 ->}\]


What is meant by ‘hydrated’ salts? Explain with examples.


Write the names, formulae and colours of any two hydrated salts.


The number of molecules of water of crystallisation present in washing soda crystals is ______.


Give one example of a salt which gives an aqueous solution having:

pH more than 7


Consider the following salts:

Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH)2SO4

Which of these salts will give:

  1. acidic solutions?
  2. neutral solutions?
  3. basic solutions (or alkaline solutions)?

 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 liberate CO2 when reacted with sodium carbonate? 


Give four substances which contain water of crystallization and write their common name.


Outline the steps required to convert hydrogen chloride to anhydrous iron (III) chloride. Write the equations for the reactions.


Copy and complete the following table which refers to the action of heat on some carbonates:

Carbonate Colour of residue on cooling
Zinc Carbonate  
Lead carbonate  
Copper carbonate  

The chemical name of plaster of Paris is ______.


Salt is ______ in nature.


Name the salt formed when sulphuric acid is added to sodium hydroxide and write its pH.


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:

Copper sulphate


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