In an experiment to study coal dust explosibility, it is found that at – McqOptions

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1.	In an experiment to study coal dust explosibility, it is found that at least 3.0 g of limestone dust should be added to a sample of 2.0 g of coal dust to ensure that propagation of flame does not take place. The explosibility factor of coal dust is
A.	60.00
B.	20.00
C.	6.70
D.	1.50
Answer» E.

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