Advertisements
Advertisements
प्रश्न
Write a correctly balanced equation for the following:
When steam is passed over red hot iron.
Write a balanced chemical equation for the reaction that occurs when steam is passed over red hot iron.
Advertisements
उत्तर
\[\ce{3Fe + \underset{(Steam)}{4H2O} ->[heat] \underset{(Magnetic oxide of iron)}{Fe3O4} + 4H2\uparrow}\]
APPEARS IN
संबंधित प्रश्न
Indicate which of the following statement is true and which is false:
The hydrogen molecule is monovalent.
Give reason for the following:
A pop sound produced when hydrogen is burnt?
State four uses of hydrogen:
Multiple Choice Question
Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare
Multiple Choice Question
Hydrogen is
MULTIPLE CHOICE QUESTIONS
The name hydrogen was given by
- Cavendish
- Lavoisier
- Haber
- none of these
MULTIPLE CHOICE QUESTIONS
Which is the lightest of all elements?
- hydrogen
- helium
- lithium
- none of these
FILL IN THE BLANK
Ammonia is used to make ................
Why is hydrogen called a reducing agent? Give chemical equation to support your answer ?
Give equations for the reactions.
How is hydrogen separated from carbon dioxide and carbon monoxide?
Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen is a combustible gas.
Give balanced equation for the following conversion:
Nitrogen to a basic gas – using hydrogen.
Give reason for the following:
The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.
Write a correctly balanced equation for the following “word equation”:
calcium + water → calcium hydroxide + hydrogen
What do you observe when a piece of sodium is dropped into cold water?
What do the following symbols represent : 2H and H2.
Give a reason for the following.
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen has one valence electron.
