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Question
Complete and balance the following reaction.
Al + H2SO4 →_____________ +___________
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Solution
2Al + 3H2SO4 →Al2(SO4)3 + 3H2
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RELATED QUESTIONS
Give reason for the following:
Though hydrogen is lighter than air it cannot be collected by downward displacement of air.
MATCH THE COLUMNS
| column A | column B |
| 1. `""2H_2 + O_2 → 2H_2O` | A. This reaction is not possible |
| 2. `""H_2+CI_2 →2HCI` | B.This reaction is exothermic to the extent of explosion |
| 3.`""ZaO+ H^2→Zn +H_2O` | C.This reaction is known as Haber process |
| 4.`""Cu + H_2SO^4 → CuSO_4 + H_2 ` | D.This reaction illustrates the reducing property of bydrogen |
| 5.`""N_2 +3H_2 → 2NH_3 +heat ` | E. This reaction takes place in diffused sunlight |
| F. This reaction is a method of preparation of hydrogen |
Why nitric acid is not used in the preparation of hydrogen?
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Complete and balance the following reaction.
Fe + HCl →_____________ +___________
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Aluminium - 2Al + 2NaOH + 2H2O → ______ + _______ [g]
2Al + 2KOH + 2H2O → _____ + _____ [g]
Give a balanced equation for the following conversion.
\[\ce{ZnO<-H2O->Fe3O4}\]
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
