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Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)?
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Compare the reactivity of metals A) In reaction with air B) In reactio...
Metals reaction with air :-
Metals reacts with air to form metal oxides.
Metal + Air (Oxygen) ––> Metal oxides
Examples :
(i) 2Cu + O2 ––> 2CuO (Copper Oxide)
(ii) 4Al + 3O2 ––> 2Al2O3 (Aluminium Oxide)
Metal oxides are generally basic in nature.
Metals with water :-
Metals reacts with water to form metal oxide and liberates Hydrogen gas.
Metal + H2O ––> Metal oxide + H2↑
Some metals react violently with water release temperature so it is "Exothermic Reaction". So Hydrogen catches fire.
Examples :
(i) 2Na + 2H2O ––> 2NaOH + H2↑
(ii) 2K + H2O ––> 2KOH + H2↑
Here, Potassium is more reactive than Sodium.
Some metals react with cold / hot water.
(i) Ca + 2H2O ––> Ca (OH) + H2↑
(ii) Mg + 2H2O ––> Mg (OH) + H2↑
Here, Magnesium is more reactive than Calcium.
Metals with acids :-
Metals reacts with acids to form salts and liberates Hydrogen gas.
Metals + Acids ––> Metal salts + Hydrogen gas↑
Examples :
(i) Mg + 2HCl ––> MgCl2 + H2↑
(ii) 2Al + 6HCl ––> 2AlCl3 + H2↑(Reactivity decreases)
(iii) Zn + 2HCl ––> ZnCl2 + H2↑
(iv) Fe + 2HCl ––> FeCl2 + H2↑
Mg > Al > Zn > Fe.
Here, Mg (Magnesium) is more reactive and Fe (Iron) is less reactive.
Metals reacts with air to form metal oxides.
Metal + Air (Oxygen) ––> Metal oxides
Examples :
(i) 2Cu + O2 ––> 2CuO (Copper Oxide)
(ii) 4Al + 3O2 ––> 2Al2O3 (Aluminium Oxide)
Metal oxides are generally basic in nature.
Metals with water :-
Metals reacts with water to form metal oxide and liberates Hydrogen gas.
Metal + H2O ––> Metal oxide + H2↑
Some metals react violently with water release temperature so it is "Exothermic Reaction". So Hydrogen catches fire.
Examples :
(i) 2Na + 2H2O ––> 2NaOH + H2↑
(ii) 2K + H2O ––> 2KOH + H2↑
Here, Potassium is more reactive than Sodium.
Some metals react with cold / hot water.
(i) Ca + 2H2O ––> Ca (OH) + H2↑
(ii) Mg + 2H2O ––> Mg (OH) + H2↑
Here, Magnesium is more reactive than Calcium.
Metals with acids :-
Metals reacts with acids to form salts and liberates Hydrogen gas.
Metals + Acids ––> Metal salts + Hydrogen gas↑
Examples :
(i) Mg + 2HCl ––> MgCl2 + H2↑
(ii) 2Al + 6HCl ––> 2AlCl3 + H2↑(Reactivity decreases)
(iii) Zn + 2HCl ––> ZnCl2 + H2↑
(iv) Fe + 2HCl ––> FeCl2 + H2↑
Mg > Al > Zn > Fe.
Here, Mg (Magnesium) is more reactive and Fe (Iron) is less reactive.
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Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)?
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Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)?.
Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Compare the reactivity of metals A) In reaction with air B) In reaction with water C) in reaction with acids (consider only the metals given in chapter)?.
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