Advertisements
Advertisements
Question
What is the fixation of Nitrogen?
Advertisements
Solution
The conversion of free atmospheric nitrogen into useful nitrogenous compounds in the soil is known as the fixation of atmospheric nitrogen.
APPEARS IN
RELATED QUESTIONS
Cold, dilute nitric acid reacts with copper to give ______.
Fill in the blanks using the appropriate words given below :
(Sulphur dioxide, nitrogen dioxide, Nitric oxide, Sulphuric acid)
Hot, concentrated nitric acid reacts with sulphur to form ______________.
- Write a balanced chemical equation for the laboratory preparation of nitric acid.
- In the preparation of nitric acid from KNO3, concentrated hydrochloric acid is not used in place of concentrated sulphuric acid. Explain why?
- Conc. nitric acid prepared in the laboratory is yellow in colour. Why? How is this colour removed?
- Give reasons for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitrate should not be heated very strongly above 200°C.
Identify the substance underlined:
The dilute acid which is an oxidizing agent.
What is the oxidizing agent in ostwald process ?
How would you separate gold from a mixture of gold and copper filling?
The following statement is correct only under certain conditions. Rewrite the statement including the appropriate condition(s) and underline it in your answer.
Copper and nitric acid react together to produce nitrogen dioxide.
Write balanced equation to show the reaction between the sulphur and hot concentrated nitric acid.
Write a balanced equation for following :
Action of cold and dilute nitric acid on copper
From the formulae listed below, Choose, one, corresponding to the salt having the given description:
AgCl, CuCO3, CuSO4.5H2O, KNO3, NaCl, NaHSO4, Pb(NO3)2, ZnCO3, ZnSO4, 7H2O.
On heating this, salt changes from green to black.
