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प्रश्न
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The reaction of sodium metal is found to be highly explosive
Explain this observation giving suitable reason.
उत्तर
Hydrogen gas is evolved when sodium metal (Na) is reacted with dilute HCl. The reaction is of exothermic nature. Therefore, hydrogen catches fire accompanied by explosion.
`2"Na"("s") + 2"HCl" ("aq") -> 2"NaCl"("aq") + "H"_2("g")`
Remember : Sodium metal as such does not catch fire. It is the hydrogen gas evolved which burns since the reaction is highly exothermic in nature.
संबंधित प्रश्न
What is an oxidising agent?
Fill in the blank
Oxidation is the removal of ......................and addition of ....................
Electrolysis is a redox process. Explain.
Give the general group study of hydrogen with reference to
reducing power
Why zinc and aluminium are considered to have a unique nature. Give balanced equations to support your answer.
\[\ce{MnO2 + 4HCl -> + 2H2O + Cl2}\]
Identify the substance oxidized in the above equation.
What happens when zinc granules are treated with dilute solution of H2SO4, HCl, HNO3, NaCl and NaOH Also write the chemical equations if reaction oçcurs.
What is a redox reaction?
______ is a metal that has a high resistance to corrosion.
In the redox reaction:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
