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प्रश्न
Name the following
Indicator that turns deep pink when treated with NH4OH.
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उत्तर
Phenolphthalein
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संबंधित प्रश्न
Give a balanced chemical equation for Catalytic oxidation of Ammonia
explain catalytic oxidation of ammonia.
Name the following
Gas obtained by treating chlorine in excess of ammonia.
Give balanced chemical equations for of the following :
Reaction of ammonia with excess chlorine.
Name the substance used for drying ammonia gas? Why cannot substances such as conc.H2SO4, anhydrous calcium chloride and phosphorus pentoxide be used for drying ammonia gas?
Differentiate between:
Reaction of excess ammonia with chlorine and NH3 with excess chlorine
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
Pb(NO3)2
(a) Name the catalyst used in 1(ii)
(b) In the reaction referred to in 1(ii), the catalyst glows red hot. Why?
(c) What is the name of the industrial process which starts with the reaction reffered to in 1 (ii)?
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?
On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is demonstrated here?
