Question 2 i. Some properties of sulphuric acid are listed below. [4] Choose the role played by sulphuric acid as A, B, C or D which is responsible for the reactions (1) to (4). (A) Dilute acid (B) Dehydrating agent (C) Non-volatile acid (D) Oxidizing agent. (1) CuSO45H2O Conc.H2SO4 CuSO4 + 5H2O (2) S + 2H2SO4(conc.) 3 SO2 + 2H2O (3) NaNO3 + H2SO4 (conc.) <200o NaHSO4+ HNO3 (4) MgO + H2SO4 MgSO4 + H2O ii. Convert Ammonia to Nitric acid by the Ostwald’s process giving all conditions. [3] iii. Show the formation of carbon tetrachloride molecule using an electron ‘dot and cross’ diagram. [2] iv. Convert iron [II] sulphide to hydrogen sulphide, using dilute Sulphuric acid. [1]
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Explanation:
- 1. (B) Dehydrating Agent
- 2. (D) Oxidixing Agent
- 3. (A) Dilute Acid
- 4. (C) Non volatile acid
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