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Chemistry Paper 1 2019 Graded A+
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CHEMISTRY PAPER 1 2019 GRADED A+ (a) Graphite is a non metal most commonly used as an electrode. State two properties that make it suitable for use as an electrode. (2mks) (a) (i) It is a good conductor of electricity. √ 1 (ii) It is unreactive/.inert. √ 1 (b) Graphite is an allotrope of carbon. Distinguish between allotropes and isotopes. (2mks) (b) Allotropes are different forms of an element in the same physical state while isotopes are atoms of the same element having the same atomic number but different mass numbers √ 1
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