Advertisements
Advertisements
प्रश्न
Fill in the blank
Hydrogen reacts with metal oxides to form ............and....................
Advertisements
उत्तर
Hydrogen reacts with metal oxides to form metal and water.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Hydrogen is ...................soluble in water.
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A divalent metal
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
How would you modify your apparatus to collect dry hydrogen? Which drying agent would you employ for this purpose?
Give reason:
A candle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed inside the jar.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
Give a balanced equation for the following conversion.
\[\ce{ZnO<-H2O->Fe3O4}\]
