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प्रश्न
State the use of hydrogen –
In hydrogenation of oil and coal
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उत्तर
Use of hydrogen in the hydrogenation of oil and coal :
- Vegetable oil [palm oil] turns to [vegetable ghee] semisolid fats by hydrogenation in presence of nickel catalyst at 170°C.
- Passage of H2 under high pressure in the presence of a catalyst and at suitable temperature produces a product similar to petroleum.
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संबंधित प्रश्न
Write two physical properties of hydrogen.
Discuss the occurrence of hydrogen in the universe and on the earth ?
Under what conditions can hydrogen be made to combine with nitrogen?
Name the products and write the equation for the reaction.
Under what conditions can hydrogen be made to combine with sulphur?
Name the products and write the equation for the reaction.
State the following pertaining to the physical properties of hydrogen: Effect on moist blue litmus paper.
With reference to the uses of hydrogen, give reason for the following:
Reaction of hydrogen with nitrogen under specific conditions finds industrial utility.
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen chloride - H2 + Cl2 → ________
Complete and balance the equation:
Conversion of hydrogen to -
Ammonia - N2 + 3H2 ⇌ ______
Complete and balance the equation:
Hydrogen in metallurgy - reduction of
Zinc oxide - ZnO + H2 → ________ + ______
Why is copper not used to prepare hydrogen by the action of dilute hydrochloric acid or dilute sulphuric acid on the metal, [copper [Cu] below hydrogen – no reaction]
