1.

Which of the following does not react with sulphuric acid in any condition? *ZincPlatinumMagnesiumIron​

Answer»

\Large{\underline{\underline{\red{\tt{\purple{\leadsto } SolutioN:-}}}}}

The given metals to us are ,

  • Zinc ( Zn)
  • Platinum ( Pt )
  • Magnesium ( Mg )
  • Iron ( Fe )

Among the given metals the metal which does not react with Sulphuric acid ( \sf H_2SO_4) is Platinum .

This is so because all the other three elements Zinc , Magnesium and Iron are placed at a higher level than Hydrogen in reactivity series . So these metals have the ability to displace hydrogen .

WHEREAS Platinum is located below hydrogen in the activity series so it WOULD not react with sulphuric acid under any case. Also platinum is a noble metal.

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\Large{\underline{\underline{\red{\tt{\purple{\leadsto } ExtrA\:\: InformatioN:-}}}}}

\bf \green{\purple{\bullet} \:\: <klux>COMBINATION</klux>\: Reaction} :-

A reaction in which two or more reactants combine to form a single product is known as combination reaction.

\boxed{\purple{\tt{\dag \underset{\orange{Nitrogen}}{N_2}+\underset{\orange{Oxygen}}{O_2}\longrightarrow \underset{\orange{Nitricoxide}}{2NO}}}}

\boxed{\purple{\tt{\dag \underset{\orange{Ammonia}}{NH_3}+\underset{\orange{Water}}{H_2O}\longrightarrow \underset{\orange{Ammonium\: hydroxide}}{NH_4OH}}}}

\bf \green{ \purple{\bullet} \:\: Decomposition\: Reaction} :-

A reaction in which of single product BREAKS down to form two or more simpler substances or products is known as decomposition reaction . This is further divided into :

  • \tt Chemical\: Decomposition
  • \tt Photolytic \:Decomposition
  • \tt Electrolytic\: Decomposition
  • \tt Thermal\: Decomposition

\boxed{\purple{\tt{\dag \underset{\orange{Sodium\:nitrate}}{NaNO_3} \overset{\Delta}{\longrightarrow}\underset{\orange{Sodium\:nitrite}}{NaNO_2}+ \underset{\orange{Oxygen}}{O_2}}}}

\boxed{\purple{\tt{\dag \underset{\orange{Water}}{H_2O} \xrightarrow{\red{Electrolytic\: Decomposition}}\underset{\orange{Hydrogen}}{2H_2}+ \underset{\orange{Oxygen}}{O_2}}}}

\bf \green{\purple{\bullet} \:\: Displacement\: Reaction} :-

A reaction in which a more reactive metal metal from its salt solution is known as displacement reaction. Elements placed at higher level in the reactivity series can displace elements placed below them .

\boxed{\purple{\tt{\dag\underset{\orange{ Copper\: Sulphate}}{CuSO_4}+\underset{\orange{ Iron}}{Fe}\longrightarrow\underset{\orange{ Ferrous\: Sulphate}}{FeSO_4} +\underset{\orange{ Copper}}{Cu} }}}

\boxed{\purple{\tt{\dag\underset{\orange{ Pottasium\: chloride}}{2KCl}+\underset{\orange{ Fluorine}}{F_2}\longrightarrow\underset{\orange{ Pottasium\: Fluoride}}{2KF} +\underset{\orange{ Chlorine}}{Cl_2} }}}

\bf \green{ \purple{\bullet} \:\: <klux>DOUBLE</klux>\: Displacement\:\: Reaction} :-

A reaction in which the radicals of reactants are interchanged. A double decomposition or a double displacement reaction between acid and base is called neutralization reaction. precipitation reaction also double displacement reaction.

\boxed{\purple{\tt{\dag\underset{\orange{ Sodium\: Sulphate}}{Na_2SO_4}+\underset{\orange{ Zinc\:nitrate}}{Zn(NO_3)_2}\longrightarrow\underset{\orange{Sodium\:nitrate }}{2NaNO_3} +\underset{\orange{Zinc\: sulphate }}{ZnSO_4} }}}

\boxed{\purple{\tt{\dag\underset{\orange{Pottasium\: hydroxide }}{2KOH}+\underset{\orange{Sulphuric\:Acid }}{H_2SO_4}\longrightarrow\underset{\orange{ Pottasium\: Sulphate}}{K_2SO_4} +\underset{\orange{ Water}}{2H_2O} }}}


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