Web(b) Chromium is used to electroplate steel objects. The diagram shows how this could be done. chromium(III) sulfate(aq) +– object to be plated lead anode (i) Give two reasons why steel objects are plated with chromium. [2] (ii) The formula of the chromium(III) ion is Cr3+ and of the sulfate ion is SO 4 2–. Give the WebB. neutral C. basic D. acidic Answer: (D) acidic Solution: The reaction of sulphur and oxygen gives sulphur dioxide gas. The reaction involved is: S (s)+O2 (g)→SO2 (g) When sulphur dioxide is dissolved in water, sulphurous acid is formed. It turns blue litmus paper red. The reaction involved is: SO2 (g)+H2O (l)→H2SO3 (l)
Which of the following is an insulator ? (a) Graphite (b ... - Sarthaks
WebCorrect option is B) Physically most of the non-metals around us exist as gases, solids that are brittle and do not have a lustre. For example, hydrogen, oxygen are gases at room temperature and sulphur, phosphorous exist as solids. Bromine is the only non-metal that exists as a liquid at room temperature. Was this answer helpful? 0 0 WebDiamond B Compressor & Hydraulics, LLC at 1366 Swisco Road, Sulphur, LA 70665. Get Diamond B Compressor & Hydraulics, LLC can be contacted at (337) 882-7955. Get … raypec menu
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