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प्रश्न
Under what conditions can hydrogen be made to combine with sulphur?
Name the products and write the equation for the reaction.
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उत्तर
Hydrogen gas on passing through molten sulphur reacts to give hydrogen sulphide.
H2 + S → H2S
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संबंधित प्रश्न
Write two physical properties of hydrogen.
Discuss the occurrence of hydrogen in the universe and on the earth ?
Choose terms from the options given in brackets to complete this sentence.
Hydrogen is ………………… soluble in water.
(sparingly, highly, moderately)
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:
Hydrogen is not used in air balloons
Complete and balance the equation:
Conversion of hydrogen to -
Ammonia - N2 + 3H2 ⇌ ______
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen sulphide - H2 + S → ________
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.
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]
State the use of hydrogen –
In hydrogenation of oil and coal
