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प्रश्न
Give a reason for the following.
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
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उत्तर
`"H"_2` and `"Cl"_2` differ in densities `"H"_2`= 0.9 g/lit
`"Cl"_2` = 35.5 g/lit
`"H"_2` diffuses faster than `"Cl"_2` and is separated.
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संबंधित प्रश्न
Hydrogen is combustible as well as a supporter of combustion.
Multiple Choice Question
Hydrogen is responsible for producing
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In nature, hydrogen occurs as a .................. molecule represented as H2
FILL IN THE BLANK
Hydrogen is present abundantly in the ................
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Ammonia is used to make ................
Write the balanced equation and give your observation when the following metal reacts:
Sodium with cold water
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with boiling water
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with steam
Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen does not support combustion.
Give a test to differentiate between two gas jars – one containing pure hydrogen and the other hydrogen-air mixture.
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:
Water gas to hydrogen – industrially.
Give balanced equation for the following conversion:
Iron [III] oxide to iron – using hydrogen.
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 |
Name a gas which burns in air or oxygen forming water.
Write a correctly balanced equation for the following:
When steam is passed over red hot iron.
Write correctly the balanced equation for the following:
‘When zinc filings are added to a concentrated solution of sodium hydroxide’.
Describe one chemical test applied to the following gases, which would enable you to distinguish between them :‘carbon monoxide and hydrogen’.
Describe briefly, with equations, the Bosch Process for the large scale production of hydrogen.
