SSC JE Mechanical Engineering 11 Oct 2020 Shift 1 Papers

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Question : 105 of 200

Marks: +1, -0

Cementite has the chemical formula:

${Fe}_{4} {C}$
${Fe}_{2} {C}_{2}$
${Fe}_{3} {C}$
${Fe}_{2} {C}$

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