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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.
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उत्तर
\[\ce{3Fe + \underset{(Steam)}{4H2O} ->[heat] \underset{(Magnetic oxide of iron)}{Fe3O4} + 4H2\uparrow}\]
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संबंधित प्रश्न
Multiple Choice Question
Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare
MULTIPLE CHOICE QUESTIONS
Which is the lightest of all elements?
- hydrogen
- helium
- lithium
- none of these
FILL IN THE BLANK
Hydrogen is present abundantly in the ................
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with steam
Choose terms from the options given in brackets to complete this sentence.
A metal …………….. hydrogen in the activity series gives hydrogen with …………… acid or …………… acid.
(above, below, dilute hydrochloric, concentrated hydrochloric, dilute sulphuric).
Correct the following statement:
Hydrogen is dried by passing it through conc. H2SO4.
How is hydrogen separated from carbon dioxide and carbon monoxide?
With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer.
Hydrogen sulphide is ______ to sulphur since the reaction involves ______ of hydrogen.
With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer.
Chlorine acts as an ______ agent.
Give balanced equation for the following conversion:
Iron [III] oxide to iron – using hydrogen.
Give reason for the following:
The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.
Give a chemical test to distinguish between the following gases:
Hydrogen and oxygen
Give a chemical test to distinguish between the following gases:
Ammonia and hydrogen chloride
How can you obtain hydrogen from sodium hydroxide [not by electrolysis].
Write balanced equation for the following reaction:
magnesium + dil. hydrochloric acid → ___
Explain the following:
Two jars of H2 are collected – “one burns quietly and the other does not”.
What do the following symbols represent : 2H and H2.
Give balanced equation for obtaining hydrogen from cold water using a divalent active metal.
Give a reason for the following.
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
