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प्रश्न
State the following pertaining to the physical properties of hydrogen: Colour & odour
उत्तर
Colour and odour of hydrogen gas colourless. Odourless.
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संबंधित प्रश्न
Give reasons for the following:
Hydrogen can be used as a fuel.
Give the general group study of hydrogen with reference to
valence electrons
Hydrogen is evolved when dilute HCl reacts with magnesium, but nothing happens in the case of mercury and silver. Explain.
State the following pertaining to the physical properties of hydrogen: Solubility in water
State the following pertaining to the physical properties of hydrogen: Effect on moist blue litmus paper.
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen sulphide - H2 + S → ________
Complete and balance the equation:
Hydrogen in metallurgy - reduction of
Zinc oxide - ZnO + H2 → ________ + ______
Complete and balance the equation:
Hydrogen in metallurgy - reduction of
Iron [III] oxide - Fe2O3 + 3H2 → ________ + ______
State the use of hydrogen –
In hydrogenation of oil and coal
State the use of hydrogen –
In the extraction of metals
