NCERT Solution for Class Tenth Science Chapter 3
Metals and Non-metals
CBSE NCERT Book Session-2022-2023
Exercises Questions
Page No-21
Questions No-11
What type of oxides are formed when non-metals combine with oxygen?
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NCERT Solution for Class Tenth Science Chapter 3
Metals and Non-metals
CBSE NCERT Book Session-2022-2023
Exercises Questions
Page No-21
Questions No-11
Non-metals when combine with oxygen form acidic oxides.
For example:
S(s) + O2(g) → SO2(g)
(Acidic in nature)
When non-metals combine with oxygen, they typically form acidic oxides, also known as non-metallic or covalent oxides. These oxides are characterized by their acidic properties, which means they can react with water to produce acidic solutions. The acidic nature of these oxides is due to the covalent (shared electron) bonding between the non-metal and oxygen atoms.
For example, sulfur (a non-metal) can react with oxygen to form sulfur dioxide (SO2), which is an acidic oxide:
S + O2 → SO2
When sulfur dioxide dissolves in water, it forms sulfurous acid (H2SO3), making the solution acidic:
SO2 + H2O → H2SO3
Similarly, carbon (a non-metal) can combine with oxygen to produce carbon dioxide (CO2), which is another example of a non-metallic or acidic oxide:
C + O2 → CO2
Carbon dioxide can dissolve in water to produce carbonic acid (H2CO3), contributing to its acidic nature:
CO2 + H2O → H2CO3
These non-metallic oxides tend to exhibit acidic properties, as they release hydrogen ions (H⁺) when dissolved in water, lowering the pH of the solution. This is in contrast to the basic or alkaline nature of metal oxides, which release hydroxide ions (OH⁻) when dissolved in water.
When non-metals combine with oxygen, they typically form acidic oxides, also known as non-metallic or covalent oxides. These oxides are characterized by their acidic properties, which means they can react with water to produce acidic solutions. The acidic nature of these oxides is due to the covalent (shared electron) bonding between the non-metal and oxygen atoms.
For example, sulfur (a non-metal) can react with oxygen to form sulfur dioxide (SO2), which is an acidic oxide:
S + O2 → SO2
When sulfur dioxide dissolves in water, it forms sulfurous acid (H2SO3), making the solution acidic:
SO2 + H2O → H2SO3
Similarly, carbon (a non-metal) can combine with oxygen to produce carbon dioxide (CO2), which is another example of a non-metallic or acidic oxide:
C + O2 → CO2
Carbon dioxide can dissolve in water to produce carbonic acid (H2CO3), contributing to its acidic nature:
CO2 + H2O → H2CO3
These non-metallic oxides tend to exhibit acidic properties, as they release hydrogen ions (H⁺) when dissolved in water, lowering the pH of the solution. This is in contrast to the basic or alkaline nature of metal oxides, which release hydroxide ions (OH⁻) when dissolved in water.