Oxygen gas is evolved on heating sodium nitrate. Give the equation for the manufacture of the gas - ammonia. (iii) Nitrogen combines with hydrogen. Name the Gas Evolved When the Following Mixtures Are Heated: Sodium Nitrite and Ammonium Chloride . In this reaction, CaCl 2 & water vapor is also produced. Similarly, ammonium sulphate also sublimes when heated above 235 o C and thermally decomposes into ammonia gas and sulphuric acid vapour. [5] (d) Give a reason for each of the following: d. In the manufacture of ammonia, i. Here, separate fuel and oxidized chemicals are used, intimately mixed in the solid grain. Textbook Solutions 25197. Syllabus. c. Give the equation for the reaction: Ammonium chloride is heated with sodium hydroxide. . (ii) Action of dilute hydrochloric acid on sodium sulphite. The reaction between solid chromium(III) oxide and solid carbon produced solid chromium and carbon dioxide gas. The other type of solid propellant is the composite. (iv) What do you observe when ammonia is passed over copper oxide ? Description of the process: Ammonia gas is generally prepared in the laboratory by quietly heating ammonium chloride (NH 4 Cl) and slaked lime [Ca(OH) 2]. (ii) Name the gas evolved B. Question Papers 301. (iv) Action of dilute sulphuric acid on sodium carbonate. CISCE ICSE Class 10. (v) State the property illustrated in the above reaction (iii). ATTENTION! Advertisement Remove all ads. CISCE ... Time Tables 15. From: Health & Safety Executive; Explosives - Ammonium Nitrate. (v) Addition of sodium to cold water. Question Bank Solutions 24848. (d) Pungent smelling basic gas called ammonia is evolved. Lab preparation of Ammonia (NH 3) Theory: In the laboratory, a mixture of Ca(OH) 2 & NH 4 Cl is heated in order to produce NH 3 gas. . (NH 4 ) 2 SO 4(s) NH 3(g) + H 2 SO 4(g) For more on sublimation, see the States of Matter webpage. e. Action of Heat on Salts. Heating a salt may cause it to decompose. just don’t try it! Question 2012 (a) Name – The gas produced when excess ammonia reacts with chlorine. The oxidizer is usually ammonium nitrate, potassium chlorate, or ammonium chlorate, and often comprises as much as four-fifths or more of the whole propellant mix. (iii) Write a balanced equation for the reaction of ammonia with A. By identifying the gas or gases liberated, it is possible to pinpoint the anion present in the salt. Ammonium nitrate decomposes into dinitrogen monoxide and water NH4NO3 --> N2O + 2H2O Lead (II) nitrate decomposes into lead (II) oxide, nitrogen dioxide and oxygen gas State the ratio of the reactants iii. (c) Name the gas evolved in each of the following cases: (i) Copper carbonate is heated strongly. Important Solutions 2865. State the catalyst used iv. The decomposition may result in (a) a colour change (b) evolution of a gas (c) liberation of water vapour Gases such as carbon dioxide, sulphur dioxide, nitrogen dioxide, ammonia or oxygen can be evolved. (b) Rewrite the correct statement with the missing word/s: Magnesium nitride reacts with water to liberate ammonia. The equation for this reaction is: 2 Cr₂O₃(s) + 3 C(s) → 4 Cr(s) + 3 CO₂(g) When crystals of lead nitrate are heated strongly in a dry test tube (a) crystals immediately melt (b) a brown residue is left (c) white fumes appear in the test tube (d) a yellow residue is left Answer: (b)Pungent smelling, brown fumes are evolved due to NO 2 gas … Ammonium nitrate melts when heated, but, . Name the Gas Evolved: the Gas Produced on Heating Sodium Nitrate. Name the process ii. Question 3: Dry ammonia gas is passed over black substance as shown in figure below : (i) Name the black substance A. Explosives - Ammonium Nitrate: Ammonium Chloride is heated with sodium hydroxide What you. Observe when ammonia is Evolved ) Action of dilute hydrochloric acid on sodium sulphite chemicals Are used intimately! 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