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प्रश्न
A metal ______ hydrogen in the reactivity series gives hydrogen with ______.
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उत्तर
A metal above hydrogen in the reactivity series gives hydrogen with dilute acids.
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संबंधित प्रश्न
Name the following:
Two metals which give hydrogen with cold water.
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
FILL IN THE BLANK
........................... means ‘maker of water’ in Greek.
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
How did the name 'hydrogen' originate?
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?
Starting from hydrogen gas how would you obtain a basic gas.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Zinc - Zn + H2O → ______+ _______ [g]
Complete and balance the equation:
[Industrial Method - Bosch process]
- Step I - Production of water gas -
\[\ce{C + H2O->[1000°C]}\] [____ + ____] - Δ - Step II - Reduction of steam to hydrogen by carbon monoxide
\[\ce{CO + H2 + H2O->[450°C][Fe2O3]}\] _____ + ____ [g] - Step III - Removal of unreacted carbon dioxide and carbon monoxidefrom the above mixture
KOH + CO2 → _________ + ______
CuCl + CO + 2H2O → _______
Give a balanced equation for the following conversion.
\[\ce{CO + H2<-H2O->CO2 + H}\]
