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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
\[\ce{3Fe + \underset{(Steam)}{4H2O} ->[heat] \underset{(magnetic oxide of iron)}{Fe3O4} + 4H2O\uparrow}\]
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संबंधित प्रश्न
Indicate which of the following statement is true and which is false:
The hydrogen molecule is monovalent.
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Hydrogen gas is easily liquefiable.
Complete and balance the following equation:
H2+____________→ 2HCI
State four uses of hydrogen:
FILL IN THE BLANK
In nature, hydrogen occurs as a .................. molecule represented as H2
FILL IN THE BLANK
The compounds of carbon and hydrogen are called .................
Choose the correct option:
The composition of the nucleus of deuterium is
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Give balanced equation for the following conversion:
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Give balanced equation for the following conversion:
Iron [III] oxide to iron – using hydrogen.
Give balanced equation for the following conversion:
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Give reason for the following:
The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
Match the statements in List I with the appropriate answer in List II.
| List I | List II |
| 1. An atom of hydrogen | A: Chromic oxide |
| 2. A strong oxidising agent | B: Ammonia |
| 3. A promoter used in Bosch process | C: Iron |
| 4. A chemical used in the manufavture of fertilizers | D: One electron |
| 5. The catalyst used in production of a basic gas from nitrogen. | E: Dilute nitric acid |
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Write down the “word equation” for the following reaction:
sodium hydroxide solution + zinc → ?
Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].
Give balanced equation for obtaining hydrogen from cold water using a monovalent active metal.
