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Question
Starting from hydrogen gas how would you obtain a neutral liquid.
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Solution
Hydrogen bums quietly in oxygen to produce water (a neutral liquid)
2H2 + O2 → 2H2O
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Multiple Choice Question
Water gas is a mixture of
For laboratory preparation of hydrogen, give the following:
fully-labeled diagram
Why nitric acid is not used 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.
Zn + HCl →_____________ +___________
Complete and balance the following reaction.
Al + KOH + H2O→_____________ +___________
Starting from hydrogen gas how would you obtain a metal by reduction of its heated oxide.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
State the reactant added to hydrogen to obtain the respective product in following case.
Water
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Fe3O4 + H2}\]
