Question

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Answer 1

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We are here reacting Magnesium with Sulphuric acid . Here , Magnesium is a metal and therefore basic in nature. And the reaction between a metal and a acid give rises to Salt and Hydrogen gas. The amount of magnesium used here is 4g. The Reaction of both of them will be ,

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$\dashrightarrow\boxed{\sf \underset{Magnesium}{Mg} + \underset{Sulphuric\ Acid}{H_2SO_2 }\to \underset{Magnesium\ Sulphate}{MgSO_4 }+ \underset{Hydrogen}{H_2 }}$

• Thus , here , magnesium being more reactive than Hydrogen replaces it , and formes , Magnesium sulphate . And in this process Hydrogen gas is produced.

• On adding water to it Magnesium will become Magnesium Hydroxide [ Mg(OH)₂ ] . And thus the Reaction between them will be Neutralization reaction .

• For testing the presence of Hydrogen, bring a burning matchstick near , if the pop sound comes , it will indicate the presence of Hydrogen .

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There are different types of reaction , of which major types are ,

• Combination Reaction
• Decomposition Reaction
• Displacement Reaction
• Double Displacement Reaction.

As the name suggests, combination reaction is the reaction which takes place when two substance react to combine. Ex - Reaction of Hydrogen and Oxygen to form Water. Decomposition Reaction is just contrary of it , which take place when a substance breaks into two or more.

Displacement Reaction takes place when a more metal substance displaces a less reactive metal from its salt solution. And the double Displacement Reaction takes place by the exchange of ions.

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