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B
Lime
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C
Silica
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D
Magnesium
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Solution
The correct option is B Lime Ans. (b)
Lime = 63 ;(60-65)%
Silica = 20 (17 to 25)%
Magnesia = 3(0.5-4)%
Alumina = 6 (3 to 8)%,
Iron oxide = 3 (0.5 to 6)%
Sulphur = 1 (1-2)%
Alkalies= 0.5(0.2-1)%