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प्रश्न
A gas ‘P’ gives dense white fumes with chlorine. Its aqueous solution gives a blue colour with copper (II) hydroxide.
- Name the gas P.
- Give its formula.
- Give three uses of P.
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उत्तर
(a) The gas is ammonia.
(b) The formula is NH3.
(c) Uses of ammonia:
- It is used in the industrial preparation of nitric acid by Ostwald process.
- It is used in the manufacture of fertilizers such as ammonium sulphate, ammonium nitrate, and ammonium phosphate.
- It is used in the manufacture of sodium carbonate by the Solvay process.
\[\ce{NaCl + NH3 + CO2 + H2O → NaHCO3 + NH4Cl}\]
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संबंधित प्रश्न
The equation 4NH3 + 5O2 → 4NO + 6 H2O, represents the catalytic oxidation of ammonia. If 100 cm3 of ammonia is used calculate the volume of oxygen required to oxidize the ammonia completely
State one relevant observation for the following
When ammonia gas is burnt in an atmosphere of excess oxygen.
Study the flow chart given and give balanced equations to represent the reactions A, B and C:
\[\ce{Mg3N2 ->[A] NH3 <=>[B][C] NH4Cl}\]
Name the following
Products obtained by treating with excess chlorine.
State one possible source of each reactant used in the process.
Write an equation for the reaction to prepare one fertilizer from ammonia.
Give a balanced chemical equation 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?
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide.
Write a balanced chemical equation for the Black copper oxide changes to a reddish brown/pink copper reaction.
