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svp [43]
3 years ago
8

Identify the single displacement reaction.

Chemistry
2 answers:
Maurinko [17]3 years ago
7 0
The displacement reaction is D
pishuonlain [190]3 years ago
3 0

Answer : The correct option is, (D)

Explanation :

Option A reaction : C_4H_{12}+7O_2\rightarrow 6H_2O+4CO_2

It is a combustion reaction. A reaction in which a hydrocarbon react with the oxygen to give product as carbon dioxide and water.

Option B reaction : 2H_2+O_2\rightarrow 2H_2O

It is a combination reaction. A reaction in which the two or more reactants react to give a product.

Option C reaction : Al_2S_3\rightarrow 2Al+3S

It is a decomposition reaction. A reaction in which a reactant decomposes to form two or more products.

Option D reaction : Cl_2+2KBr\rightarrow 2KCl+Br_2

It is a single displacement reaction. It is a reaction in which the more reactive element displace the less reactive element.  In this reaction, most reactive element chlorine displaces the less reactive element bromine.

Hence, the correct option is, (D)

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<span>(6.645x10^-23mol)x(6.02x10^23 atoms/mol)=4 atoms
</span>therefore 4 atoms of Fe will be left over after the reaction happens.

I hope this helps.
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