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प्रश्न
Give a balanced equation for the following conversion.
\[\ce{MgCl2<-HCl->FeCl2}\]
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उत्तर
\[\ce{Mg + 2HCl->MgCl2 + H2}\]
\[\ce{Fe + 2HCl->FeCl2 + H2}\]
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संबंधित प्रश्न
TRUE \ FALSE
Hydrogen does not combine with nitrogen under ordinary conditions.
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Give reason for the following:
The end of the thistle funnel should be dipped under acid.
Give reason for the following:
Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of hydrogen.
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric acid and concentrated nitric acid would you choose? Explain why you would not use the acids you reject.
Complete and balance the following reaction.
Fe + HCl →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Account for the following fact:
Potassium and sodium are not used to react with dilute ‘hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{MgO + H2}\]
