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CHEMISTRY Section A ( attempt all questions) Question 1 a)Name the following: [5] 1. Liquor ammonia fortis is a saturated solution of 2. Process by which impurities from metal are removed electrically 3. A gaseous hydrocarbon used for welding purpose 4. Among the period 2 elements ,the element which has highest electron affinity is 5. A metal with dull appearance b) Identify the following gases[5] 1. The gas evolved on reaction of Aluminium with boiling concentrated caustic alkali solution. 2. The gas produced when excess ammonia reacts with chlorine 3. A gas which turns acidified potassium dichromate paper clear green. 4. The gas produced when copper reacts with concentrated nitric acid 5. The gas produced on reaction of dilute sulphuric acid with a metal sulphide. c)Give reasons for the following:[5]
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