Advertisements
Advertisements
प्रश्न
Name the following
Indicator that turns deep pink when treated with NH4OH.
Advertisements
उत्तर
Phenolphthalein
APPEARS IN
संबंधित प्रश्न
Write balanced chemical equations for the following:
When the excess of ammonia is treated with chlorine.
A gas ‘A’ reacts with another gas ‘B’ in the presence of a catalyst to give a colourless gas ‘C’. The gas ‘C’ when comes in contact with air produces a brown gas ‘D’. The solution of ‘A’ in water turns red litmus blue. Explain the observations.
Why is ammonium hydroxide used in qualitative analysis? Give two equations to justify your answer.
Write an equation for the reaction to prepare one fertilizer from ammonia.
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
FeSO4
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?
How is ammonia dried and collected in the laboratory?
State one relevant observation for the following:
Burning of ammonia in excess of oxygen.
A compound which undergoes thermal dissociation.
