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प्रश्न
Multiple Choice Question
Water gas is a mixture of
विकल्प
carbon monoxide and oxygen
carbon monoxide and hydrogen
hydrogen and oxygen
hydrogen and nitrogen.
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उत्तर
carbon monoxide and hydrogen
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संबंधित प्रश्न
Hydrogen is ______ than air.
Fill in the blank
Hydrogen is ...................soluble in water.
Name the following:
Two metals which give hydrogen with cold water.
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Complete and balance the following reaction.
Zn + H2O →_____________ +___________
Complete and balance the following reaction.
Fe + H2O →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Iron - Fe + 2HCl → ______ + _______ [g]
Name an element whsich reacts violently with water at room temperature.
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
