Advertisements
Advertisements
प्रश्न
State the use of hydrogen –
In hydrogenation of oil and coal
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following:
Hydrogen can be used as a fuel.
What is hydrogenation?
Discuss the occurrence of hydrogen in the universe and on the earth ?
Describe two chemical properties of hydrogen with equations.
Give the general group study of hydrogen with reference to
valence electrons
Under what conditions can hydrogen be made to combine with oxygen?
Name the products and write the equation for the reaction.
Choose terms from the options given in brackets to complete this sentence.
Hydrogen is ………………… soluble in water.
(sparingly, highly, moderately)
Complete and balance the equation:
Hydrogen in metallurgy - reduction of
Zinc oxide - ZnO + H2 → ________ + ______
Place the metals calcium, iron, magnesium and sodium in order of their activity with water, placing the most active first. Write the equation for each of the above metals which react with Water.
State the use of hydrogen –
In the extraction of metals
