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What is Photosynthesis ?

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Acid-Base reaction / reaction of metallic and Non-Metallic Oxides with acids and bases

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By Sachin Joshi

 

I) Acids and Bases reacts with each other.


- > When Acids reacts with Bases to form Salt and water as product. This reaction is also called as neutralisation reaction.

Acid + Base ---------> Salt + Water 

Example:-

i) NaOH (aq) + HCl (aq) ---------> NaCl (aq) + H2O(l)

ii) MgOH (aq) + HCl (aq) -------> Mg(OH)2 (aq) + H2O (l)

iii) LiOH (aq) + HCl (aq) ---------> LiCl (aq) + H2O (l)

iv) Ca(OH)2 (aq) + H2SO4 (aq) ---------> CaSO4 (aq) + H2O (l)

II) Metallic Oxides reacts with Acids:-

- > When Metallic Oxides reacts with Acids it gives Salt and Water as products.
Metallic Oxide + Acid ------> Salt + Water
Example :-
 i)  CuO (s) + HCl (aq) -------> CuCl2 (aq) + H2O (aq)
black colour                    blue-green colour

->We notice that tht the colour of the solution becomes blue-green due to the formation of copper(II) chloride in the reaction .

ii) CuO (s) + H2SO4 (aq) -------> CuSO4 (aq) + H2O (aq)

• Nature of Metallic Oxides :-

- > The nature of Metallic Oxides are Basic in nature hence Metallic Oxides reacts with Acids to give Salt and Water.

III) Reaction of Non-Metallic Oxide with Base :-

-> When Non-Metallic Oxide react with Base to give Salt and water.

Non-Metallic Oxide + Base ------> Salt + Water

Example :-
i) CO2 (g) + 2NaOH (aq) -------> Na2CO3 (aq) + H2O (l)
ii) CO2 (g) + Ca(OH)2 (aq)-------> CaCO3 (aq) + H2O (l) 

• Nature of Non-Metallic Oxide :-
- > The nature of Non Metallic Oxide is Acidic in nature hence Non-Metallic Oxides reacts with Bases to form Salt and Water.


• IMPORTANT QUESTIONS :-

a) Show with the reaction how acid and base react with each other.
b) What is neutralisation reaction ?
c) Show with the reaction between Metallic Oxide react with Acid using suitable example.
d) What is the nature of Metallic Oxides ?
e) Why Metallic Oxides do not react with acids.
f) Sow with the reaction between Non- Metallic Oxide react with Base using suitable example.
g) What is the nature of Non-Metallic Oxides ?
h) Why Non- Metallic Oxides do not react with Bases.



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