Advertisements
Advertisements
प्रश्न
Name the following
Indicator that turns deep pink when treated with NH4OH.
उत्तर
Phenolphthalein
APPEARS IN
संबंधित प्रश्न
explain catalytic oxidation of ammonia.
Copy and complete the following table which refers to the industrial method for the preparation of ammonia and sulphuric acid:
| Name of the compoun | Name of the process | Catalytic equation (with the catalyst) |
| Ammonia | (i)__________ | (ii) __________ |
| Sulhuric acid | (iii) ___________ | (iv) __________ |
Name the following
Solid obtained by passing ammonia over heated copper oxide
Name the following
An acidic gas which reacts with a basic gas liberating neutral gas.
Write an equation for the reaction to prepare one fertilizer from ammonia.
Certain blank spaces are left in the following table and these are labelled as A,B,C,Da and E. Identify each of then
|
1 |
HCl gas |
NaCl + H2SO4 |
A = ________ |
Conc.H2SO4 |
B = ___ |
|
2 |
NH3 gas |
C = ____ |
Mg(OH)2NH3 |
D = ______ |
E = ___ |
Give balanced chemical equations for the following:
Reaction of ammonia with sulphuric acid.
Industrially, ammonia is obtained by direct combination of nitrogen and hydrogen.
(i) Write balanced equation for the direct combination of nitrogen and hydrogen.
(ii) Which of the metals - iron, platinum, copper - catalyse this direct combination?
(iii) Is the formation of ammonia promoted by high pressure or low pressure?
