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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
Fill in the blank
Hydrogen reacts with metal oxides to form ............and....................
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
TRUE \ FALSE
Hydrogen does not combine with nitrogen under ordinary conditions.
Which metal is preferred for the preparation of hydrogen?
from water?
Why nitric acid is not used in the preparation of hydrogen?
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 metals copper, zinc, magnesium or sodium would be the most suitable?
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
