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प्रश्न
Complete and balance the following reaction.
Al + H2SO4 →_____________ +___________
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उत्तर
2Al + 3H2SO4 →Al2(SO4)3 + 3H2
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संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
What is noticed if the products are not allowed to escape?
For laboratory preparation of hydrogen, give the following:
method of collection
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Give reason for the following:
In the preparation of hydrogen by electrolysis of water – the distilled water used is acidified.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Lead - Pb + 2NaOH → ______ + _______ [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 → _______
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
