Advertisements
Advertisements
प्रश्न
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
Advertisements
उत्तर
In a glass apparatus nitric acid gets decomposed by sunlight. Yellowish brown colour of nitric acid is due to the presence of nitrogen dioxide formed due to thermal decomposition of nitric acid.
APPEARS IN
संबंधित प्रश्न
Write an equation for the following conversions A, B, C and D.
Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
Give reason for the following:
Conc. Nitric acid renders iron passive.
What happen when (Given balanced equation):
Limestone reacts with nitric acid?
Complete and balance the following equation :
C + HNO3 → ___________
Choose the correct answer from the option given below :
When treated with nitric acid which of the following liberate hydrogen?
Choose the correct answer from the option given below:
The catalyst used in the manufacture of HNO3 by Ostwald process is
Write the equation to show the reaction between the following:
Dilute nitric acid to produce carbon dioxide.
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid:
(i) Name A (a liquid), B( a Solid) and C(a liquid).
(ii) write the balanced chemical equation to show how nitric acid undergoes decomposition.
(iii) Write the balanced chemical equation for the reaction in which copper is oxidized by concentrated nitric acid.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
