Advertisements
Advertisements
प्रश्न
Give the importance of the following for living beings:
Nitrogen
उत्तर
- Nitrogen is an essential constituent of proteins, essential for living beings' growth.
- Its presence reduces the rate of combustion.
APPEARS IN
संबंधित प्रश्न
Explain the following terms:
smelting
Why is flux used in the blast furnace?
How is it removed?
Explain with reason:
Why is powdered coke sprinkled on top of the electrolyte?
The following is a sketch of an electrolytic cell used in the extraction of aluminium :
(a) What is the substance of which the electrode A and B are made?
(b) At which electrode (A or B) is aluminium formed?
(c) What are the two aluminium compounds in the electrolyte C?
(d) Why is it necessary for electrode B to be continuously replaced?
What do you observe when hydrogen is passed over heated copper oxide?
Write the molecular formulae of the following compound.
Ferrous tungstate
The chemical name of rust is ______.
State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
Calcination is used in metallurgy for the removal of?